250w bulb on 400w ballast - Canreef Aquatics Bulletin Board

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250w bulb on 400w ballast

07-09-2005, 12:53 PM

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Join Date: Jul 2005

Location: CALGARY

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250w bulb on 400w ballast

Hi a friend of mine give me a MH ballast which is rated for 400W. Then I buy a 400w bulb off ebay but the seller send me a wrong bulb he send me a 250W and I am having a hard time contacting the guy so instead wasting my time contacting the guy can I just use the 250 bulb on a 400w ballast? I have ask my friend but he told he don't know.

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