Will a normal magnetic 400W MH ballast work with the USHIO UHI-S400DD replacement bulb? Might be a silly question, but I do not know the specifics on how these bulbs/ballasts work. I can get a MH ballast cheap, and I'd hate to let this opportunity go to waste if I can use it with this bulb.
Thanks!
Thanks!
If the Ansi code of the magnetic ballast is S51 then it will work with the USHIO UHI-S400DD bulb.
doesn't work well
Normal MH ballast has been tried, and did not work well. The Ushio retrofit lamps need either a High Pressure Sodium ballast or an electronic ballast. But S51 HPS ballast kits should be easy to find. This is a very standard parking lot lamp ballast. See if you can get one locally, they are very heavy so you can pay a lot for shipping.
Normal MH ballast has been tried, and did not work well. The Ushio retrofit lamps need either a High Pressure Sodium ballast or an electronic ballast. But S51 HPS ballast kits should be easy to find. This is a very standard parking lot lamp ballast. See if you can get one locally, they are very heavy so you can pay a lot for shipping.
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