... ,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 ... 90% of electricity used into heat with only 10% into light. The benefit of LED Lights are that they use only 15% ... office,and other places. These lighting fixtures are designed with utmost precision under the guidance of experienced professionals using excellent ...