... and solid mecury,high efficiency,friendly environmental,long lifetime; fluorecent lamp fixture Power: HE series:4w,6w,8w,13w,14w,21w,28w ... ,35w HO series:24w,39w,54w,49w Features: 1.Material:Aluminium body or Plastic body with PC cover, nice ... standard 3.High Power Factor(PF>99%),low THD(<10%) 4.Use tri-phosphor powder fluorescent lamp,more brightness,high efficiency 5 ...