1.T8 Double fluorescent light fixure 2.Cover-0.35mm steel thick 3.Powder coating with full copper wiring ballast, A3 series Model No.: A3OM2C18 T8 Double fluorescent light fitting with cover1) Novel and nice design, with cover;2) 0.35mm galvanized steel, powder-coated;3) High quality ballast included;4) Anti-rust;5) Specifications: 1X20W, 2X20W, 1X40W, 2X40W.