fluorescent lamp fixture,use tri-phosphor powder tube and solid mecury,high efficiency,friendly environmental,long lifetime; fluorecent lamp fixturePower: HE series: ... 4w,6w,8w,13w,14w,21w,28w,35w HO series:24w,39w,54w,49wFeatures:1.Material: ... >99%),low THD(<10%)4.Use tri-phosphor powder fluorescent lamp,more brightness,high efficiency5.No noise,no flicker,low ...