Holophane RBK400MHMTB Ballast Replacement Module

The Holophane RBK400MHMTB Ballast Replacement is a 400W metal halide ballast kit that regulates current and provides reliable ignition for MH lamps in industrial HID lighting systems. Manufactured by Holophane (Acuity Brands), it uses a copper-wound magnetic core-and-coil ballast with capacitor and ignitor assembly and supports 120–277 VAC multi-tap input at 50/60 Hz for ANSI M59 MH lamps. This fixture- or enclosure-mounted ballast delivers high power-factor operation and is suitable for warehouse high-bay fixtures, outdoor area lighting, manufacturing facilities, distribution centers, parking structures, and municipal lighting infrastructure where 400W MH lighting is required. Common replacements include universal 400W MH M59 ballast kits (multi-tap CWA type) and equivalents such as Philips Advance 400W MH ballast HX-HPF series and Sola/Hevi-Duty 400W HID MH ballast assemblies.