... , tw 100 Copper/Aluminum Ballast, Ballast for Discharge lighting, Metal Halide Ballast, High Pressure Sodium Ballast, High Pressure Mercury Ballast, Magnetic Ballast, Electromagnetic BallastQYE 70-1000WMetal ... higher.- Shape: Enclosed style with an special molded iron box.- Color for the ballast box: Red, Blue, White, Silver, etc. Also it can ...