... high efficiency,friendly environmental,long lifetime; fluorecent lamp fixturePower: HE series:4w,6w,8w,13w,14w,21w,28w,35w HO ... high quality ballast,comply with 3C,TUV-CE standard3.High Power Factor(PF>99%),low THD(<10%)4.Use tri- ... low work temperature,low power consumption6.Long lifetime,>8000hrs,energy saving up to 45%7.Installation:Ceiling mounting, series connectionApplication: House lighting ...