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This is a 250 watt pulse start metal halide ballast with a power factor of 90% meeting ANSI M138/M153. 4-Tap voltage input.
Philips Advance series 71A5792-001D metal halide ballast features a 4-tap voltage input for compatibility from 120 to 277 volts. For use with your 250 watt lamps, this magnetic HID ballast boasts a high power factor of 90%, ensuring maximum efficiency. A temperature rating of 221 degrees F makes the ballast suitable for mounting in locations where high heat may be an issue.
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