millworkman said:There are many different T5 sizes. You have to know what type of ballast you have to be sure you can run T5s in them. It should be easy enough for you to find, a sticker or stamp somewhere on them.
Browning said:T5 in it is much smeller diameter than the aquarium fixture bulbs
link to the one you use?rebelgrower3 said:I have a 4 bulb 24" HO t5 I have been pondering on selling does great for seedlings. The t5's are great lights and do a good job.