T5 retrofit fixture with earth wire PF>0.98,THD<15% Power:8w,14w,21w,28w,35w ... standard;can pass EMC and RoHs.3.High quality:PF>0.99,THD<10%,Usual quality:PF>0.95,THD<30%4.Use tri-phosphor ... powder fluorescent lamp,more brightness,high efficiency5.No noise, ... ,show case,hotel,office etc T5 Batten fixture with high quality electronic ballast