led ceiliing lamp 1Long life>50,000hours 2Ecnomical 3Easily and fastly install or replace traditional lamp 4Energy sav led ceiliing lamp 1Long life>50,000hours2Ecnomical3Easily and fastly install or replace traditional lamp4Energy savFeature:1Housing:Aluminium material with good heat conduction.2. Working Temperature: -20°C~ +55°C,lifespan:50,000h,electric appliance safe class three,material in ...