... .Lumens:4000LM ;TUV/CE/RoHS Good price and high quality 600x600 LED panel lightsSpecifications1.led panel light 2.600*600mm 3.Long time ... . Working Temperature:-10~ 405. No such hazard that mercury or lead enters the environment6. No RF interference7. Warranty: 2 ... years.Application : 1.Hotel, Meeting room, Factory or office, commercial lighting, Residential/ institution building, school, hospital.