Thread: PFO Electronic Ballast & Radium Bulb Problems
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Old 06-04-2009, 08:18 PM
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The Radium 20K 250W bulb is specifically spec'd for a 250W HQI (M80) ballast. While a 250W electronic ballast will work with that bulb, it will underdrive the Radium. Therein may be the issue.
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