F32T8 to drive 1 VHO?
Be aware though that your bulb life will be shortened quite a bit but for the price diffrence between the two ballst's it probably is worth it for ya.
I got 7 od 4x bulbs, by the ballast you mention on my tank and the daylight last I would say 6 months or so then they start to get real black ends.
I may be just repeating stuff you know so i will stop rambling.
cheers [img]smile.gif[/img]
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