Doco:

Unfortunately you're speaking in absolutes, and you should not be.

Fact: the 48" bulb comes both as 54w and 28 watts.
Fact: not all T5s are HO.
That all T5 bulbs are HO, even for 24" is incorrect.

T-5 Lamp Miniature Bi-Pin Base 48" 6500K: Light Bulbs Etc, Inc.

Misinformation indeed.
hewhispers Reviewed by hewhispers on . Who's working with T5s They keep calling me and I have seen other logs elsewhere where T5s are being used from seed to harvesting. Is there anyone here using them? What were your results? What were the positives, negatives? Thanks! Rating: 5