50 Watt Quad Tap M110 Metal Halide Ballast KitMetal Halide Ballast Cross Reference: Advance Ballast 71A5181 500D Universal M50MLTLC3M Venture V90D5731K Keystone MH 50X Q KIT Venture Lighting focuses not only on metal halide lamps, but also on metal halide ballasts. Venture Lighting designs and manufactures lighting systems that are energy efficient, uses less chemicals and have extended life. Venture Lighting is constantly enhancing existing product offerings and developing new lighting