d constant current drive circuit

 d constant current drive circuit output current is constant, the output DC voltage, but as the load  LED Bulb resistance of different sizes vary within a certain range, the load resistance is small, the output voltage is low, the load is greater the resistance, the output voltage will be.

  LED Strip

Since the generated external lighting, we have put lighting is divided into three age: Age filament bulb (incandescent), the gas lamp era (fluorescent), the semiconductor light-emitting era (LED). Which he alleged the longest history and future of incandescent mainstream of the LED, the most important point of the expedition. Regardless of how the development of the times, the lighting industry's production processes are surprisingly similar, as nothing more than China is in the downstream industry. Core technology basically is Europe, America and Japan and other countries and regions all. LED Module