How to Choose a Solar Battery

Solar battery - it is a photovoltaic DC generator that uses the effect of the conversion of solar energy into electrical energy. They use a semiconductor property, made on the basis of silicon crystals.

Note that when selecting a solar panel system that would fit for your home, there are several determining factors. Firstly, it is the climatic characteristics of the area in which the home is located. On this depends the duration of sunshine on your home and the battery, and, respectively, and time of accumulation of solar energy. Determine how you suitable area for solar illumination location on the map.

Consider also the amount of heat in the choice of solar cell that you want to get a result. The best option - the battery is capable to cover the forty to eighty percent of the heat demand. Those systems are less effective and can be very costly. This is also necessary to consider the possibility of designing and calculation of system power. This guarantees you the reliability of the system and the possibility of confrontation force majeure (disconnection from the power supply, bad weather). Entrust these calculations in the art. BTW, you can buy the 3W solar panel at Banggood. Besides, you can easily get other electronic accessories (e.g. DC 12V charger) there with high quality and reasonable prices.

Consider also that the thickness of the photovoltaic cells will provide electron emission lifetime, but the thickness of the foil only provides low cost, to aspire to the Chinese manufacturers. Notice the structure of the glass surface, if it textured, the input radiation power will be increased by 15%, and thereby increase the efficiency of the solar cell and, in particular cloudy season.

Basic Characteristics You Should Know About Drilling Machines

Modern drilling machines - a wide range of equipment that is used in large factories. Each model has its own characteristics, it is necessary to take into account when choosing. Each machine consists of certain structural elements, accessories.

Modern drilling machines are presented in a huge variety. Depending on the design features and all-purpose models are divided into desktop and radial drilling. First apply individually to create parts in a small volume, and the second characterized by the ability to move the drill head with a special cutting tool, which can move in different directions. By the massive equipment includes vertical drilling machine, which can be adjusted in terms of valve lift. Thanks to him, you can install and fix certain parameters and perform any product in the stream.

Various models of drilling equipment have been widely used in many fields. At the same time thanks to the simple design and compact, they can be used in any environment - both at home and on a large industrial enterprise. Choosing a model for the solution of certain problems, consider also what has drilling machine characteristics. The first and most important question is the question of whether the equipment is made of any material. The most reliable is made of iron or steel, the steel is easier, cheaper and more mobile. Cast iron units are distinguished by a large weight and size, but they are reliable, durable, not accompanied by vibration during operation, drilling works are carried out as accurately as possible. In the simplest model of the drilling machine is equipped with a fixed working table with a horizontally movable work platform. Detail, which is treated securely fastened in slots and vise and moves together with the table along the planes. Multi-option - CNC machines that can be controlled manually, or automatically. To work with the device was easier. You need to know what the scheme drill. In the simplest embodiment it comprises a spindle headstock, which contains an electric motor and drive mechanism. This element is mounted on a pillar-stand of metal. Besides the engine, the machine consists of a chuck, desktop, pen feed fence. Seating unit table is created from the metal sheet.

BTW, you can buy the cheap drill machine at Banggood. Besides, you can easily get other electronic accessories (e.g. black dust mask) there with high quality and reasonable prices. 

Gifts for a Boy of 7 Years Old

Choosing a gift is not an easy process, especially if a present choose for a boy of 7 years old. After all, he is not the baby, but it seems not yet an adult. Of course, 7 years - this is already "solid" age! And on the day of birth parents and relatives will not be able to get rid of a new jacket or a box of chocolates. At this age, a child often has himself knows what he wants. 

Experts in the field of gifts and child psychologists believe that choosing a gift must be guided by the boy's hobbies. That is, if a child draws, give him a birthday painting supplies. If you play sports, it can be presented as gift appropriate equipment. If you like to read - a good book, etc. Do not give your child is the birthday of school supplies, just because he was a first-grader. Even if the boy delighted with his studies, it is still a new backpack, a fantastic pen ruler (pen with screwdriver) or "cool" pencil case will soon be erased from memory as gifts and will be perceived by ordinary kid.

There are times when the 7-year-old boy has not yet decided on their hobbies. In this case, you can give a gift "in advance", for example, a ball or a hockey stick, if he suddenly future football or hockey. Good help in choosing a gift can be very desire of the child. That is, it can just give what he wants. If you want to give mobile phone, it should be not very expensive, because children at this age are usually not very oriented in the prices and value of the gift. He wants tablet? Well, this is also a great gift! Only in this case you need to properly motivate the child to later days do not sit behind it.

How to Calculate the Slope

Calculation of the slope can be useful when surveying work when calculating a slope of the roof, or for other purposes. Well, if you have a special device for the measurement data, but if it is not - do not worry, it will be enough roulette and improvised.

You will need

- Inclinometer;

- The transmitter;

- Level;

- Roulette;

- Rack;

- Calculator;

- Level.

The easiest way is to consider the slope using inclinometer, if you haven’t, you can buy inclinometer at Banggood. Besides, you can easily get other electronics (e.g. digital MP4) there with high quality and reasonable prices. Or you can make this tool yourself. Take the rail and attach it to the frame, in the corner of the rack, position the axis of the pendulum. The pendulum is made of two rings, plates, sinker and a pointer. When measuring bob will move between the guides with the notches, place a scale with divisions, making it with a protractor.

Attach the rail at right angles to the ridge to measure roof pitch and a look at what the division of the scale pointer stopped. You will receive the value of the slope in degrees. To measure the slope with the help of available resources without creating special device, mentally build a right-angled triangle, the inclined side of which will coincide with the inclined surface, one leg is parallel to the ground, and the second - perpendicular. Now your task is to find at least two sides of the triangle.

On a plot of land or a road, you can use leveling. Determine with the help of the height of a point above sea level, and see the difference and the distance between the points tape. If leveling is not, just taking a long board and place it horizontally (align the national level-or way). At the bottom of this sheet under the board bricks or other available means. Measure the length and height of the board of bricks.

How to Make a Big Hole in the Metal

When performing various maintenance and construction work is often necessary to make a hole with large diameter in a metal or plastic.

When drilling large holes, a number of difficulties. If you buy enough powerful drill is not so difficult, you have available all the necessary drill diameters are already becoming a problem. Drills with diameter 10 - 40 mm are expensive, bulky, and their shafts cannot always be clamped drill chuck available. BTW, you can buy the hex shank drill chuck at Banggood. Besides, you can easily get other electronic accessories (e.g. spacer screw) there with high quality and reasonable prices.

In addition, when drilling a conventional thin metal drill hole is obtained irregular triangular shape. To overcome these difficulties helps step drill. It is a cone with steps, each of which is responsible for its diameter. The most frequently encountered in the drill for sale are 9 - 12 sets of steps and allow to making holes from 4 to 36mm in diameter, allowed to drill holes in solid metal up to 2 mm, in color and up to 5mm to 10mm in plastic. In order to make the opening step drill, it is necessary to tighten the chuck and drill leaning against the edge of the planned drilling site. Selected location is not necessary, as the drill bit does not slip, and immediately cutting into the metal. Next, you need to start drilling, gradually increasing with each step up to the required diameter of the hole. Upon completion, the same drill can be chamfered.

How to Measure the Wind Speed

Wind is the natural factor, with which the person cannot be considered. The strength of the wind has an effect on the speed of movement of marine vessels, although they have long been no sails. Wind allows or prevents the operation of high-rise crane twists millstones, provides electricity. Wind can cause catastrophic destruction.

You will need Vane-Anemometer, Hand anemometer, Stopwatch, Conversion table. BTW, you can buy anemometer at Banggood. Besides, you can easily get other electronic accessories (e.g. THK diamond tools) there with high quality and reasonable prices.

The most common way to determine the strength of the wind can be said household, which is the installation on the roof or on a free-standing mast anemovane.  The speed of the wind is determined by the deviation of hinged metal board with respect to the eight pins. On the table is then determined by the speed of the wind, the corresponding pin sector.

In terms of unattached location - in the campaign, exploration, commonly on ships used this method - the speed of the wind, both for short and for long periods of time, it is convenient to measure with a manual mechanical anemometer. In order to measure the speed of the wind manual anemometer you need more stopwatches. Out on the wind, simultaneously with the removal of the brake anemometer, you start the stopwatch. After, for example, minutes, anemometer is stopped, and the readings are taken. Thus, you get the average speed of the wind in interval of 60 seconds. For more accuracy, you can increase the time of measurement, or to carry out repeated measurements at short intervals.

Finally, the force of the wind, you can identify by their appearance. Look around - under the influence of wind at different slope smoke rising from a pipe or from the fire, bent or broken tree branches, in the waters or mirror-like surface, or rises ripples, and at a strong wind - roll wave. Approximate power of the wind in this case, you can identify the tables.

Why Is Diaphragm Pump Most Popular?

Pumps - it aggregates, which are most widely used in various industries, as well as in solving certain problems in the home. There are many varieties of this type of devices. Among the most popular and practical to use - diaphragm water pump.

What principle the diaphragm pump is running according to? The scheme is as follows. This device consists of two cavities located opposite one another. They are separated membrane - a very flexible but at the same time a strong plate. A cavity is filled with air, the other - a liquid. Between them, in turn, is a distributor which acts on the membrane so that it is moved back and forth with small amplitude.

The diaphragm pump has a number of advantages. Firstly, this exceptional ease of execution (in most technology implementations) is usually provided rotating parts and motors of this type in aggregates. Those mechanisms that cause the pumps in motion do not constitute a technologically sophisticated device. As a rule, modern 100 PSI water pump is electric fairly simple design, with pneumatic system, if not manually turn. Secondly, these units operate with a minimum probability of failure. In fact, it is their property due to just the same simplicity of design. Diaphragm pump is a device, which will last a long time. Third, these devices are easy to install and installation, not demanding on storage and transport conditions. Temperature, humidity and other environmental factors do not affect the functionality of the pumps. 

PS3 Headset Banggood Sale

After the success of the game PlayStation and PlayStation 2 consoles from the company "Sony", published in 1994 and 2000 respectively, the emergence of a new model seemed only a matter of time. The first rumors about a new game console appeared in 2004, but until the spring of 2005 by the Japanese manufacturer did not have any information.

PS3 game console under the name officially was presented in May 2005 during the exhibition Electronic Entertainment Expo. A year later, the company "Sony" told about how much it cost to PS3, and the date of the start of sales of consoles. For the first time to test the product from the Japanese manufacturer it was presented at TGS 2006, where visitors had the opportunity to evaluate a number of games on the new console.

Before we find out how much PS3 Slim, it is recommended to get acquainted with its merits. Of course, like any other product, this gaming console made in Japan has its own advantages and disadvantages. Let's start with its strengths. Firstly, this is a huge multimedia capability of consoles, so that the product of "Sony" can be considered the cheapest to date player Blu-Ray discs. Secondly, in a gaming console, quite a lot of potential allows developers to create more demanding parameters of the video game system.

BTW, you can buy cheap PS3 headset at Banggood. Besides, you can easily get other electronic accessories (e.g. cheap FM tuner) there with high quality and reasonable prices.

How to Choose a Sewing Machine for Home

Before choose a sewing machine was not any difficulty. There were only a few types: foot, hand and industrial. Given the finances, a possible site installation of machines and sewing activities planned to choose the model it was very easy. It cannot be said about the present abundance of brands, models, types of sewing machines.

Before choosing a sewing machine, you need to decide with her ​​class. For example, electromechanical machines class differs from very simple structure. They have the drive. They performed 10 to 20 operations. Electronic sewing machines are controlled by a microprocessor in which different modes of programmed sewing. The machine of this type can be more difficult to sew stitches occurs on the display mode display, there may be a clue.

Now you need to choose. This can be done at home, on the Internet, selecting and comparing models of sewing machines, and you can go with a list of requirements for hardware store and consult directly from the Manager of sewing machines.

Then you need to identify the main features of the sewing machine, without which it would be impossible to do. Once the function is defined, select the task immediately simplified. At this stage you can decide on the manufacturer. Be sure to clarify whether there are in your area and service center which will be serviced. BTW, you can buy cheap industrial sewing machines at Banggood. Besides, you can easily get other electronic accessories (e.g. cheap hand drill, cheap engraving machine) there with high quality and reasonable prices.

Then you need to calculate the financial component of our choice. Determine the amount you are willing to spend to buy a sewing machine. Knowing the right manufacturer, you need to pick up the machine with the best price-performance ratio.

Minimum Required Electrician Tools for Professional Electricians

Electricity is not safe for humans. It can cause significant harm to health. The current large enough force can take away life. Therefore, precautions must be performed in full. Electrician tools have special protection. It is unacceptable to use the low-quality equipment damage. What equipment will need an electrician in the work and how it should look like a tool, you should learn more.

The required minimum for electrician tools include screwdrivers, pliers, nippers strippers, wire cutters, as well as measuring equipment, knife, tape and a marker. Screwdrivers are indispensable at work. They can be flat, cross, indicator. The main thing is that such electrician tools have protection against electric shock. BTW, you can buy cheap electrician tools at Banggood. Besides, you can easily get other electronics (e.g. 3D Printing Pen V3) there with high quality and reasonable prices.

In fact, it must be stripped only the tip in contact with the wiring elements. Twist the wires should pliers and cut them - cutting pliers or a knife. Tongs allow to removing the insulation. To measure the voltage can multimeter, voltage pointer or mites. This is the basic hand tools that required an electrician to work. Auxiliary elements, which are also useful, considered knife, tape and a marker.

Set electrician includes an additional tool to perform the appropriate action (photo shown below). Punch through special nozzles enable drill holes for sockets, as well as using it to perform many other operations. Tools electrician should be composed of wall chaser. At arrangement flush it hard to replace something. Also, sometimes you need to tighten the various fasteners, drill holes, and so on. D. This will require a screwdriver. However, in order not to carry many kinds of power tools, you must purchase a tool for electrician, as the punch function with the screwdriver.

The Camera Canon 650D Case Design

Canon EOS 650D Kit replaces the popular EOS 550D digital SLR a top line for beginners, slightly ahead of EOS 600D. Many functional features 550D were continued in this device. Like its predecessor, the camera was created as a high-performance tool for amateurs to the level of DSLR-photography.

Like its predecessor, Canon 650D camera’s body corresponds to its position in the market - polycarbonate resin and fiberglass shell concealing a stainless steel chassis. However, these materials provide the strength and durability of the device.

Canon 650D’s Front panel is a little more rounded than its predecessor. And the textured area slightly larger and better integrated into the overall design. The rest is almost nothing has changed. The key components are in the same locations on both cameras. A slide switch instead of the video, as in most cameras, reduces the likelihood of unintended operation. The couple microphones at the top of the flash is a first for this class of camera - allows you to record stereo sound. The compartment for the memory card is located on the right sidebar, takes SD, SDHC and SDXC- cards and new cards UHS-1, and Eye-Fi. The Canon EOS 650D Kit uses the same LP-E8 battery as that of its predecessor, with a capacity of 440 shots on a charge. BTW, you can buy the cheap DSLR microphone at Banggood. Besides, you can easily get other electronic accessories (e.g. cheap Dreambox, cheap DSI XL) there with high quality and reasonable prices.

Two removable rubber covers on the left side of the camera body to protect the interface ports. Under, there is a socket for an external microphone and the other hides the A / V-out, USB ports and HDMI. Like the EOS 550D, Canon 650D can be equipped with a battery in the form of a pen that will expand shooting possibilities and provide a vertical control interface in portrait position.

How to Choose Gas Burner for Camping

Kitted out on a long journey, experienced hikers definitely think that there is scope for a comfortable cooking. Of course, convenience, in this case, the conditional, but it is more expedient to use a special device, than to hope for a prosperous weather campfire. The best option may be a portable device that works independently. In particular, the camping gas stoves and burners have long proven themselves in circles avid fishermen and travelers. It is true that the unit did not disappoint during the operation, should be a responsible approach to his choice. Models such burners are distinguished by a variety of criteria, including power, construction, ignition types, and so on. But to start is to find out why you should choose it from the gas devices, as available on the market and good model with another source of supply.

In contrast to other species, gas models do not require preheating time. That is the handset itself will start working directly with the dishes immediately after switching. It is also one of the most compact and lightweight construction - for example, some models weigh less than 100 grams without the balloon. The only caveat is related to security. It is widely believed that the gas burner camp is not suitable for use in a tent. In fact it is not, because in the process of burning the flame of the torch does not create the effect. If a long time to leave the burner on, but without ignition, the third-party fire can lead to fire. Therefore, the safety rules to remember. However, it also applies to other types of burners. BTW, you can buy gas burner and cheap blow torch at Banggood. Besides, you can easily get other electronic accessories (e.g. buy LR44 battery) there with high quality and reasonable prices.

The most reliable option is considered to be in use model, which provides a connection to the container and the flow of gas through the hose. In this case, the burner can stand alone on its legs that give it stability. This, in fact, is due to the ease of its application. However, the same device is considered to be the most cumbersome. The second type of structure involves the connection without hose, in which the gas burner camp is also located separately from the cylinder. The advantages of this type provides a low price, and the shortcomings - collet walled material of the container is made with the gas. And the third type is a device in the form of nozzles, which is attached to a container top. That is not the hose again, but this advantage is often overlaps burner instability. The nozzle makes the design above, so in the choice of such a device should be preferred configuration with reliable stand.

How to Connect the Doorbell

What could be simpler and more familiar than the doorbell? However, even such a seemingly simple device conceals the secrets of the installation. How to connect the doorbell?

Calls come in two types: wired and wireless. Wired networks operate on. In such models the body and the call are connected by wires. They are reliable, work in all conditions. In wireless models their advantages. For their installation is not required to lay the wiring, they work on batteries, which means that their uninterrupted operation in case of power failure. However, we must remember that the concrete walls and iron doors could be a hindrance to the radio signal emitted by the wireless call. In addition, the batteries need to be changed from time to time.

To set the call wire need: Screwdriver indicator, pliers, screwdriver with thin tip, wire cutters and electrical tape. Too long a call wiring is not recommended, it is reasonable to place a call near the front door. Drill a hole in the door frame to display the bell wire to the outside. Bell wire is a two-core insulated wire. Attach the wire located outside of the door, to the terminals of the call button. Secure the Call button on the wall above the opening. BTW, you can buy music doorbell at Banggood. Besides, you can easily get other electronic accessories (e.g. security tag remover) there with high quality and reasonable prices.

If you call the battery (it is powered by low voltage) is in its housing, then connect the other end of the wire to the two terminals on the battery: either wire to either terminal. If the battery is separate, pull the bell wire from the bell of a button. The wires should be cut and the cut end of each connected to the ring terminal. Next, slide the wire to the battery and connect it to the terminal. When connecting the call to the transformer, first connect it to the cable distribution box, then do the above steps, but Ring terminals must be connected with the terminals of the transformer, which give the proper voltage. Attach the wires to the terminals in the housing, respectively, call the manufacturer's instructions.

How to Make a Video Surveillance System via Webcam

Through the webcams, you can without any difficulties to organize the work of video surveillance systems. To do this, you need to buy a webcam and install the software on a PC specialist.

Modern means allow, without any problems, even the non-specialist to organize a video surveillance system. Moreover, this system does not require significant investments and material costs can be mounted on any object absolutely. To be able to see everything that happens in a controlled your room, you have the ingredients needed: 

- Web camera (e.g. Endoscope Camera 720P); 

- PC or laptop with the USB-port; 

- Specialized software;

- A network connection

All of this can be purchased at Banggood, and you can also get other ICI security systems components (e.g. high quality walkie talkies) there. After all of these components being collected, you get high-quality video surveillance.

Set the camera where it is needed. Thus note that the camera can be wired or wireless. If you used a device that transmits an incoming signal on a cable, it connects via USB-port to a computer. This is the most simple and inexpensive connectivity option. Each camera has a unique IP number and the manufacturer. These data should be recorded, as they will be useful in the future. After the CCTV camera being fixed and the wire stretched them to the PC, start the software installation.

To the PC to recognize the additional device such as a video camera, you must install the appropriate drivers. But this will not be enough to carry out professional surveillance of the situation. To search for the necessary software, locate the network service. Through it, you can connect video devices as long as you want, get an opportunity not only to view images, but also to record them. If your video device capable of changing its position in space, through said service can be controlled. To start the IP-Surveillance, through the specified service is downloaded application that is installed on your PC, after which is registered on the server, check the connected devices in the application. 

How to Make a Timer

On many sites you can see the timer countdown before any specific event. It may be time to expiration of the discounts or the time remaining before the New Year. Such timers are great publicity stunt, stimulating the activity of buyers / suppliers, as well as a good variety for an interactive site.

To install a timer on your website, first download the script timer and countdown. Then adjust it two parameters: the reference date and the corresponding inscription, which will be shown at this date. Opening the downloaded archive, you will find two files: one contains countdown.js script, and the other serves as an example of the page, to which will be connected to this script - index.html. First, extract the files from the archive.

Use "Notepad" to edit the script file. To open the file in the "Notepad", use right-mouse click on it. Select from the menu "View", then select "With - Notepad". Save the file and place it in the directory where the page on your site, which will host the timer. In other words, the page file timer th and the script file must be in the same directory.

Next, in a convenient location for the placement of the timer and, in your page code, place the 2 lines:

The DIV the align = «center» ID = «countdown»>.

The first line of the team is responsible for the withdrawal of the timer a. Second is for the connection created by the script. Check the operation of your timer as well. If done correctly, you will see a countdown in the right place on the page of your site.

BTW, you can buy the cheap countdown timer at Banggood. Besides, you can easily get other electronic accessories (e.g. cheap craft kits) there with high quality and reasonable prices.

How to Put a Door Lock

The castle is the most reliable and popular design. Embedding the locking device on the iron door can only be professional, but set it on a wooden door can be independently.

Place the lock to the inside of the door at that level, where it will be embedded. Circle it along the contour with a pencil and mark the location for future fixtures. You will need a markup of the upper and lower edge of the body of the locking device, the height of its stem and keyhole. Transfer touches the mark on the opposite side of the door. Spend the center line on the middle of the door edge. Perform measurement depth of the keyhole, and mark this distance on the drill. Choose crimped or Perov drill bit with a diameter a little more than the thickness of the lock mechanism. Drill holes in the overlapping center line marked on the door edge. Work carefully, step by step drill, take care to drill kept perpendicular position.

Tick ​​on the front side of the door in the place where must be perforated to handle and latch keyhole. Drill them on both sides. Holes must come together in the middle. Align the side of the nest for the lock case at the end of the door with a chisel. Remove excess wood. BTW, you can buy the proximity door lock at Banggood. Besides, you can easily get other electronic accessories (e.g. parallel rolling ruler, Nero portable) there with high quality and reasonable prices.

Check that the holes made by the same for the latch and keyhole with the holes in the latch. To do this, insert the lock body in place. Screw the cover screws of the lock case. Insert the handle and its rod in place by tightening its screws. Move the door almost closed position. Put a mark on the edge of the door frame top and bottom latches. At the open door position, draw a line on the inner surface of the frame, using a ruler and pencil. Measure the distance between the front edge of the door and the front side of the latch. Circle the locking bolt and the hole in her pencil and attach it to the prepared layouts. Cut a slot for the latch chisel. Attach the strap and fasten it with screws

Preparations for Experiments at Home

Experiments at home - is a great way to introduce children to the basics of physics and chemistry, and to facilitate the understanding of complex laws and abstract terms by means of a demonstration. And to carry them out does not need to acquire expensive reagents or special equipment. After all, without hesitation, every day we carry out experiments at home - by adding slaked soda in the batter prior to connecting batteries to the flashlight. Read on to find out how easy, simple and safe to carry out interesting experiments.

Did you know that lemon can be used as batteries? However, very low power. Experiments at home with the children demonstrate citrus battery operation and a closed electrical circuit. You will need 4 lemons - 4 pcs, 4 galvanized nails, 4 small pieces of copper (you can take the coin), 5 crocodile clips to the wires short length (about 20 cm), a small lamp or torch. BTW, you can buy crocodile clips at Banggood. Besides, you can easily get other electronic accessories (e.g. cheap acrylic mirror) there with high quality and reasonable prices.

Here's how to spend experience: Ride on a hard surface, then gently squeeze the lemons that they let the juice inside the skin. Insert one galvanized nails and a single piece of copper in each lemon. Arrange them on a single line. Connect one end of the wire to galvanized nails, and the other - to a piece of copper in another lemon. Repeat this step until all the fruit will not be connected to each other. When you're done, you have to stay one nail 1 and 1 piece of copper, which came to nothing connected. Prepare your lamp, and determine the polarity of the battery. Plug the remaining piece of copper (plus) and a nail (minus) to the plus and minus flashlight. Thus, the chain connected lemons - a battery. Turn on the light bulb, which will operate from the power of fruit! To repeat such experiments in the home is also suitable potatoes, especially green.

Selecting an Inexpensive Outdoor Fan

In hot weather the outdoor fan is salvation in our stuffy city apartments. It is still very popular, though inferior to the air conditioner in many ways. But inexpensive fan to a modest family budget - it's a great outlet.

The shops offer a wide range of very different models of floor fans. When choosing a first pay attention to the power that affects its performance. The larger area of the room, the more powerful must be the fan. For the bedroom or children's room, select the device with the index no higher than 25-30dB. A maximum allowable noise level is considered to be 38dB. Please note that noise levels must be evaluated at the maximum speed of rotation of the blades. Outdoor fan control is an important point. Adjusting the height of the legs or the level of the top of the slope of the fan should be comfortable and not cause trouble. Well there are several fan blades rotation modes, usually three, which allows you to choose the optimum power blower. For camping, you need a portable outdoor fan. BTW, you can buy the cheap cooling system at Banggood. Besides, you can easily get other electronic accessories (e.g. cheap cordless screwdriver) there with high quality and reasonable prices.

Check outdoor fan resistance, it should not wander on a flat surface. The blades must always be closed solid bars on both sides. It is important that the cells have been as little as possible - so the fan will be safe for children who love to explore everything. Timer - a very handy feature, it is not available in all models. It is better to overpay a little and buy a fan with a timer. So you can set the time on and off the device and go to sleep quietly, without the risk of freezing during the night and ill. This is especially true in children's rooms. There are models with a remote control, but they are more expensive and do not apply to the budget. Although the presence of console greatly simplifies the use of the fan, the fan during operation should not knock, grind and publish other extraneous sounds. Check the build quality. And of course the fan must have a certificate of quality, indicating its safety and durability. Make sure that the selected model has a warranty card with the address of the service center, where they can apply in case of damage. Do not strive for well-known brands and to overpay for the brand. After all, there is less "untwisted" company, producing excellent products. Given the criteria and parameters listed above, you will be able to choose the quality and budgetary fan model that will serve you for years to come. 

Which is Better, PS3 or Xbox 360?

Well, we finally have some money saved up and are ready to realize his dream and buy a good video game console! We are eager to dive into the fascinating and exciting world of games and surrender to him without reserve at least the next week. And it off! We resort to the store! Come to the window! But at this moment you forget about all the recent anticipation and excitement, as we face the question arises, what is better - PS3 or Xbox 360.

Now compare the reading, Xbox 360 or the Playstation 3? And like the preference again goes to the side of the product from Sony. But now we will try to take into account the opinion of experienced users. Most of the Xbox gave preference among those surveyed gamers. Children were the most common and motivated their position by the fact that when playing on Xbox picture dynamic, interesting and colorful, and most importantly - it is the ability to copy games to the hard drive.

PS3 fans to the question of which is better - PS3 or Xbox 360, answered unequivocally and confirmed his words as follows: the technical advantages of the console; the legendary stick, which has not undergone any change even with PS1, well, the most important thing - it is a huge number of exclusive games that are inaccessible even to PC owners. Like it or not, we still at a crossroads. So, to sum up, still, it is better PS3 or Xbox 360? Personally, I would have bought a Sony PlayStation, as I believe that the colorful picture Xbox is not able to block all the features that the customer receives when buying a Play Station 3. Of course, this is my personal opinion, which has both opponents and supporters.

BTW, you can buy the game accessories (e.g. wholesale PS3 controller, PS3 move eye camera) at Banggood for high quality and reasonable prices.

CCTV Device and Accessories for Sale at Banggood

If you ask the experts, they understand under video surveillance, the answer will be something like this, which is a procedure that is carried out with the use of opto-electronic devices for visual monitoring or automated image analysis. And if you ask the ordinary people who faced the cameras in a bank or a store, then the answer will serve as an option, it is part of the security object. Both definitions are correct.

Each head has his motive for the installation of such a system. Someone is for watching customers and employees in the store, some of the employees of the warehouse, and some of the office workers to assess productivity. CCTV is used in private homes to control the children, a nanny or domestic animals. But the main goal - control of the situation on the observed object in the sample clock or watch.

What the video surveillance is was described above. But there is a second part of the term - the "system". What are the elements it is made? Yes, it’s made of DVR, camcorders, source of power, and enclosures including brackets, monitors, cable, etc.

BTW, you can buy all the video surveillance device and accessories (e.g. CCTV stand, DC 12V battery) at Banggood for high quality and reasonable prices.

Have You Ever Wanted a Digital Wind Gauge?

A device for measuring wind speed and determine the direction of his blow known as observatories or anemometer. Apply such a device, it’s necessary to control the parameters of movement of air masses.

Despite the diversity of anemometers, which differ structurally, most of them work on the principle of determining the nature of the action of the air flow on the movable rotating elements. Devices in this category are able to determine the maximum current wind speed at the breath flow in a certain direction. Some models give performance air volume flow, flow temperature and humidity. Thus, a functional device for measuring wind speed is converted into a portable weather station.

Meteorological instruments can be equipped with blades or cups, which play the role of the sensor element. Recent movably fixed to the vertical rod and connected to the meter. Moving air flow makes these turntables to rotate around its axis. As the movement measuring system records the number of revolutions for a specific time period. Visual information provides scale wind speed or digital display.

Constructions of this type invented a long time ago. However, despite the emergence of more sophisticated instruments, rotational anemometers still continue to successfully operate meteorologists around the world.

BTW, you can buy the digital wind gauge at Banggood. Besides, you can easily get other digital measuring tools (e.g. digital KWH anemometer) there with high quality and reasonable prices.

Canon 650D Design and Its Accessories

Canon EOS 650D Kit replaces the popular EOS 550D digital SLR a top line for beginners, slightly ahead of EOS 600D. Many functional features 550D were continued in this device. Like its predecessor, the camera was created as a high-performance tool for amateurs to the level of DSLR-photography.

Like its predecessor, Canon 650D camera’s body corresponds to its position in the market - polycarbonate resin and fiberglass shell concealing a stainless steel chassis. However, these materials provide the strength and durability of the device. Holder of sufficient size is to satisfy the majority of users, and the layout of controls similar to 550D.

The Canon 650D’s Front panel is a little more rounded than its predecessor, and the textured area slightly larger and better integrated into the overall design. The rest is almost nothing has changed. The key components are in the same locations on both cameras. A slide switch instead of the video, as in most cameras, reduces the likelihood of unintended operation. The couple microphones at the top of the flash is a first for this class of camera - allows you to record stereo sound. The compartment for the memory card is located on the right sidebar, takes SD, SDHC and SDXC- cards and new cards UHS-1, and Eye-Fi. The Canon EOS 650D Kit uses the same LP-E8 battery as that of its predecessor, with a capacity of 440 shots on a charge.

Two removable rubber cover on the left side of the camera body is to protect the interface ports. Under there is a socket for an external microphone and the other hides the A / V-out, USB ports and HDMI. Like the EOS 550D, Canon 650D can be equipped with a battery in the form of a pen that will expand shooting possibilities and provide a vertical control interface in portrait position.

BTW, you can buy the cheap canon T2I and camera accessories (e.g. lens filter kits) at Banggood for high quality and reasonable prices.