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Old 03-23-2008, 12:14 AM   #1
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Lighting question: MH ballast and sockets

I have been wondering if this was possible but could not find any information to tell me if it would work or not, can anyone help me out. I have a 250 Watt MH ballast kit consisting of a transformer, capacitor, and mogul socket.

I have used thes kits before and the work perfect, my question is could I buy a double ended socket kit and a 250 Watt HQI bulb and just swap it out with the mogul socket? Any help is greatly appreciated, thanks.
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Old 03-23-2008, 06:49 AM   #2
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I know that it works in reverse, you know had a 250watt hqi system bulb holder broke switched with mogul socket (thats all that was available localy) and it worked fine. of course I switched back as soon as I ordered the new part. but I dont see why it wouldn't work the other way around.
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Old 03-23-2008, 09:15 AM   #3
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I don't think you can fire a HQI DE bulb with a magnetic ballast. Any reason in particular you want to use DE instead of SE bulbs?
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Old 03-23-2008, 12:33 PM   #4
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I was thinking about doing away with my canopy and going with two 250 watt DE pendants.

Since the canopy I have now was a DIY, I have a custom made ballast box with both transformers, capacitors, and cooling fans already made, i was wondering if i could just purchase the two pendants and wire them up to the existing ballast box.

Again any and all help is greatly appreciated.
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Old 03-27-2008, 02:25 AM   #5
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You could always do single ended pendants instead of the DE. As far as I know you have to have an HQI ballast to fire DE bulbs. HQI ballast will fire both single ended and DE, but I don't think it works the other way around.

I would check with the manufacturer of your ballast and see if it will fire HQI DE bulbs. What kind of ballast is it?
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