People in the LED industry all know that the quality of LED driving power supply greatly affects the life of LED lamps. Because of the high profit, it has always been highly praised by the majority of lighting enterprises. However, due to the decline in the price of LED lighting products and the increasingly fierce competition in the power industry, especially due to the impact of the overseas financial crisis, the sales of LED power supplies of some enterprises have shown a sharp decline this year. Statistics show that there are currently more than 300 LED drive power manufacturers in China, of which more than of their main products are low-power LED drive power. Since the beginning of this year, the relevant government departments have successively introduced the LED indoor lighting subsidy policy, which has also played a stimulant for the low-power LED power supply market. However, due to the lower-than-expected demand growth in the application market and the increasing number of competitive enterprises, the sales volume of low-power LED drive power supply market is not optimistic. It is understood that at present, the industry generally defines the dividing line of medium and small power power supply at 18 W, and the part of medium power power supply is generally applied to the fields of downlights, spotlights, floodlights and floodlights, low-power power supply is mainly used in bulb lamps and lamps. Price chaos is more prominent in the medium and small power supply market. Due to the low entry threshold, everyone entered the market, including many lighting companies. This has also caused the current market for small and medium-sized LED drive power supplies to be chaotic and the products are mixed.