... warranty 3,2800-6500K 230-255lm 4,Lifespan:50000hrs 3W Square LED Ceiling Light Features:a) Easy to install, a perfect ... Insolated driver, NO RF interference, and electric wave resistant. e) High luminous intensity, low light degradation. f) Special circuit design, ... , energy saving up to 82%. i) Optimized LED lighting beam angle. j) High efficiency constant current driver, Wide Voltage AC100-240V ...