... : led ceiling panel light Features:1.Aluminum body to insure heat dissipation and long life-span2.Saving up 50% energy consumption3.High ... and environment4.Instant start, no flickering, no humming5.New inner high efficiency (95%) with heat protection system, the constant current6.Special ... , art galleries, museums, offices, reading rooms, contour range 300X600 20W high Lumen led ceiling panel light