T5 ballast

[NoobReefer671]

Could you run a 48in(54w) bulb on a 36inch (39w) ballast? I have a retro fit kit with 2 39w bulbs but would like to change one bulb out to a 48in(54w) bulb because of the way my tank is designed i would like more coverage. So one 48in and 36in bulb on a 39w ballast.

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[joseserrano]

I think that’s ok. Look at the ballast. It will tel you how many watts it can pump out