... 1,COB LED ceiling lights 2,7W,500lm,wiring 3,2800-6500K,220v 4,Energe saver,effective 5,Passed CE&RoHS certificate Type:COB Ceiling LightInput ... the most energy efficient lighting option available. Energy EfficientA standard 50W halogen lamp turns 90% of electricity used into heat ... the strong R&D technical ability. We all use the high-quality accessories,and all products have passed CE&RoHS ,UL test ...