With PF>0.9,Inner and Isolated Power Supply,4ft 12W LED Tube Light T8 1.>1150lm 2.75-80Ra ... Name:With PF>0.9,Inner and Isolated Power Supply,4ft 12W LED Tube Light T8Features:1. Save energy more ... directly replacement for Traditional Fluorescent tube lamp3. PF>0.9,No flash, drive by isolated and constant current power ... testing!!!! With PF>0.9,Inner and Isolated Power Supply,4ft 12W LED Tube Light T8