Solar is one of most clean and green energy in the earth. Solar panel is made of silicon, silicon is a kind of material largely exist on the earth. The function of solar panel is converting Solar to electricity, but it’s Direct Voltage (not Alternative Voltage). Monolithic rigid thin film solar panel have a sunlight conversion rate of 15% (up to 18%). Due to sunlight is changing every seconds, so the output of voltage from Solar panel is not stable. That’s the reason you can not directly connect the solar panel to some electronic device.

As we know, the global lighting consumes whole electricity 20%, most for outdoor lighting. According to statistics, there are installed street lights up to 200 million sets in China, average power of street lights is about 200W, if each street light works 10 hours, it consumers 2KWH per day, and 730WKH one year (365 days), so 200 million sets of street lights consume electricity 146billion KWH each year. Chinese largest Sanxia Hydro-power Station assembles 26 complete sets of machines and only generates electricity 847 hundred million WKH each year, we can see about two Sanxia Hydro power stations generate electricity can be enough to satisfy annual electricity consumption for all of street lights.

Silicon solar panel is the major products which can convert solar to electricity.?Now due to the mature of silicon solar panel technology, more and more people are using the silicon solar panel as of the sources of power supply.

The beauty of silicon solar panel is it costs less money, and the life-span of panel can be 25 year or 30 years (continuous working), In addition, it is one of ?the most clean and green technology in the world.

Silicon solar panel is the major products which can convert solar to electricity.?Now due to the mature of silicon solar panel technology, more and more people are using the silicon solar panel as of the sources of power supply.

The beauty of silicon solar panel is it costs less money, and the life-span of panel can be 25 year or 30 years (continuous working), In addition, it is one of ?the most clean and green technology in the world.

Perimeter protection is the first defense line for the intrusion detection, it's most important and crucial for the whole security system. Now with different technology, there are two different perimeter protection: Active infrared beam and electric fence. Electric fence with disadvantages of high cost and appearance, effectiveness, so the electric fence doesn't widely used in perimeter protection.  On the contrary, active infrared beam sensor occupied most market for the perimeter protection projects. Even though compare with electric fence, installation for the infrared beam sensor is pretty easy,  but the wiring, construction works are very hassle.