2. The driver: LED is the semiconductor component for direct current to transform into light energy, therefore a stable driver needs driver chips with high performance, and at the same time the function of power facture condenser is needed to guarantee efficiency of the driver. The driver is of crucial importance for LED Lights. Nowadays the LED drivers in the market are of quite different quality. Good drivers should not only guarantee stable DC output, but also improvement of transformation efficiency. The real parameter is reflected in the energy saving character and electricity saving character. Moreover, drivers with good quality can save a lot of bills for maintenance fee due to driver failure.