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The Howard M-175-4T-CWA-K metal halide ballast features a 4-tap voltage input for compatibility from 120 to 277 volts. For use with 175 watt lamps, this magnetic HID ballast boasts a high power factor of 90%, ensuring maximum efficiency. A temperature rating of 212 degrees F makes the ballast suitable for mounting in warehouses and manufacturing facilities where high heat may be an issue. Includes dry capacitor and bracket kit.