fluorescent lamp fixture,use tri-phosphor powder tube and solid mecury,high efficiency,friendly environmental,long lifetime; fluorecent lamp fixturePower: HE series:4w, ... quality ballast,comply with 3C,TUV-CE standard3.High Power Factor(PF>99%),low THD(<10%)4.Use tri-phosphor powder fluorescent lamp,more ... House lighting, shopping mall,refrigeratory,show case,hotel,office etc fluorescent lamp fixture