... , 110V/120V/220- 240V.50/60Hz,pre-heating and EOL function B) TUV Standard, PF≥0.97, ... solid-stated mercury, 38% less usage of glass and phosphor powder compared to T8 lamps.5, Good Color ... to natural light,good for eyes8, No labour and no modification cost to the existing T8 light fixture9 ... office,store,house, project energy conservation improvement and so on T5 wall lamp fixtures built in EB 6w/8w/13w ...