... airports, commercials and home lighting and so onAttentions: 1. Thickness of ceiling material should be 5 to 25mm2. No sundries around and ... heat sinks, and other heat sinks. In April of 2011, again introduction of experienced professional LED lighting engineers and technicians, XINKEFA ... passed CCC, CE, UL certification. Main products are LED ceiling lighting, LED spot light, LED bulb light, LED bean ...