fluorescent lamp fixture,use tri-phosphor powder tube and solid ... HO series:24w,39w,54w,49wFeatures:1.Material:Aluminium body or Plastic body with PC cover, nice appearance2.Adopt high quality ... PF>99%),low THD(<10%)4.Use tri-phosphor powder fluorescent lamp,more brightness,high efficiency5.No noise,no flicker, ... lighting, shopping mall,refrigeratory,show case,hotel,office etc fluorescent lamp fixture