... PF>0.98,THD<15% Power:8w,14w,21w,28w,35w 1)T5 Batten fixture with earth wire (Aluminum material) 2)White coated body ... 3)Power:8w,14w,21w,28w,35w 4) high efficiency ... :PF>0.95,THD<30%4.Use tri-phosphor powder fluorescent lamp,more brightness,high efficiency5.No noise,no flicker, low ...