1. 50 Watt LED Bulb Sale uses DC driver. The electro-optical power conversion of ultra-low power consumption (single tube 0.03-0.06 watts) is close to 100%, and the same lighting effect is more than 80%more energy conservation than traditional light sources. 2. The 50 Watt LED Bulb Sale basically does not contain toxic substances such as mercury elements, which is more environmentally friendly...