... anodized aluminium 3, Built in ballast 4, CE Rohs t5 office light fixtures Specification:Housing:0.6mm sheet steel, surface coated with ... ,VS,OSRAM or TRIDONIC.ATCOIstallation: Recessed Input: 220V /50~60HzLamp:T5 4*28W/54wBase:G5Body material: 0.6mm sheet steelA:1195 ... be widely used in factories, stores, office, school (ST-A428+) t5 office light fixtures