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jda · 04/21/2017, 08:13 AM

You will need all 48 inches of T5 fixture. The poster above was saying that if you get a supplemental LED panel, to get one that is smaller since they spill light off of the edges. The T5 won't do this and you want to be end-to-end.

The problem with four bulbs is that they won't cover 24 deep very well unless you raise it way up. A pair of two-bulbs that has some distance between then would be better than a single four. I would get an 6 or an 8, but four could work. It depends on the fixture, but usually, you can turn them on in pairs, but read up before you buy one.

04/21/2017, 08:13 AM	#25
jda Dogmatic Dinosaur Join Date: Feb 2004 Location: Boulder, CO Posts: 6,256	You will need all 48 inches of T5 fixture. The poster above was saying that if you get a supplemental LED panel, to get one that is smaller since they spill light off of the edges. The T5 won't do this and you want to be end-to-end. The problem with four bulbs is that they won't cover 24 deep very well unless you raise it way up. A pair of two-bulbs that has some distance between then would be better than a single four. I would get an 6 or an 8, but four could work. It depends on the fixture, but usually, you can turn them on in pairs, but read up before you buy one.