Quote:
Originally Posted by fencer
The T5 will work but you might end up overdriving them and shortening their llife. Electronic ballasts you might get away with.
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i would have to say you would be under driving them and they will not fire due to the fact that a standard VHO 4' T5 is 54 watts (which i would think is in your fixture), a standard 4' T8 is 34 watts and a standard T12 is 40 watts , there for your ballast will not supply enough initial in rush to fire the lamp.