I just changed the two over the carnivores a few weeks ago. There are 4 bulbs total, and I rotate the old bulbs to the opposite side, where there are mostly miniature orchids and such. The bulbs have worked fine for growing plants. 6700K spectrum, and I've been growing things (legal, I swear!) under PC lights for years. Drosera are a bit new to me, but I have an H. minor and Cephalotus growing for a couple years, as well as several Neps growing in the same area and doing quite well. I suppose I can free up another 10 gallon, and use my other 96W on it. I just need to find room...hmm...