400W Iwasaki EYE Multi Super Ace MF400WLSH/U Internal Ignitor (direct MBFU retrofit)Elliptical Quartz Metal Halide400 Watt, E40 GES Cap, CCT 4200KCRI Ra 7538000 lumens, use in enclosed luminaires only
400W Philips Master HPI Plus BUS 400W/743 Internal Ignitor (direct MBFU retrofit)Elliptical Quartz Metal Halide400 Watt, E40 GES Cap, CCT 4300KColour rendering 69%32,500 Lumens, use in enclosed luminaires only
400W Sylvania HSI-HX Coated Internal Ignitor (direct MBFU retrofit)Elliptical Quartz Metal Halide400 Watt, E40 GES Giant Screw Cap, CCT 3800KHSI-HX 400W/CO/I 2035135,200 lumens, for use in enclosed luminaires only