... >0.9,Inner and Isolated Power Supply,4ft 12W LED Tube Light T8 1.>1150lm 2.75-80Ra 3. 2700-6500K ... . No RF Interference, No harsh glare, directly replacement for Traditional Fluorescent tube lamp3. PF>0.9,No flash, drive by isolated and ... >0.9,Inner and Isolated Power Supply,4ft 12W LED Tube Light T8