Housing:Grey PC material Diffuser:Clear PC material Gear Tray:0.5mm iron sheet with white power coated Lens clips: Plastic PC or Stainless steel Gasket:Silicon gasket or EVA Lampholder:VDE or UL available for brand name of VS,ED,AAG,BJB,HE ect Ballast: Electronic ballast available for Philips,Tridonic,Osram,Advance,Fulham,Universal, etc Application: Shopping mall,commercial building,office building,teaching building etc. Installation: Suspending or Ceiling.
