... mecury,high efficiency,friendly environmental,long lifetime; fluorecent lamp fixturePower: HE series:4w,6w,8w,13w,14w,21w,28w,35w HO ... %),low THD(<10%)4.Use tri-phosphor powder fluorescent lamp,more brightness,high efficiency5.No noise,no flicker,low ... 8000hrs,energy saving up to 45%7.Installation:Ceiling mounting, series connectionApplication: House lighting, shopping mall,refrigeratory,show case,hotel ...