LED panel light LL-PL-600X600-DE has 40 watt total power, LED 2835 light source, power efficiency 83%, total luminous flux 3375lm, color rendering index Ra≥ 75, frequency 47-63Hz, power factor 0.9, working environment -20℃--+45℃;10~95%RH, working lifetime > 50000 hours, IP rating IP20.