... environment use solid-stated mercury, 38% less usage of glass and phosphor powder compared to T8 lamps. 5, Good Color Rendering Index ... 10, CE, RoHS approvedHow to replace(use T8-T5 fixture) 1, turn off power supply 2, take away the T8 lamp 3 ... the starter 4, take away the rectify capacitor, if not, the power factor of the capacitor Will be reduced to 0.5 5 ...