... ,28w,35w 3,PF>0.99, THD<10% 4,high lighting efficiency Detail specification:1, no humming sound2, voltage including: 220v ... <10%5, less mercury compared to T8 tube6, slim and lighting weight7, quick payback period, no wiring cost8, it can be ... , home, school, markets and so on9, good package for each fixture T5 adapter lighting fixture