... better heat conducting,longer lifespan CE approved LED T8 Tube Light (1.2m, 18W, 1600lm, 6000K - 6500K, 120pcs, good heat ... conducting) LED Tube Light, also named LED Fluorescent, is considered as the fourth ... its luminous flux can reach 1600 lm with 1.2m, 18W, telling that it 's much brighter ... Rendering Index(Ra): >= 80 LED T8 Tube Light( new-designed, 1.2m, 18W, 1600lm)