What are you QTing?
Fish just need enough light so that you can see them and they can have a sense of night and day.
Corals will need more depending on the family.
To keep SPS for any length of time, you will need 40 -50 watts. I try to keep everything in QT for four weeks, although I must confess I cheat from time to time!
Can I chime in here too with a similar question? It may provide an inexpensive lighting option for a QT....
What about the 50w 6500K fluorescent bulb (not tube) that Melv's Reef recommends for a fuge. (can't find the link anymore) Would that work on corals in a QT?
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