as long as they have some sort of reflector, they would work. i don't really like the cfl's, they just don't throw enough light for the aquatics i keep. i'm actually going to start slowly replacing my t5ho fixtures with leds. the tech is now where they are affordable in our color temp ranges that we use. my honest advice is this: if you are planning on growing live plants, do yourself a favor and don't skimp on lighting. when it comes to plants, there's a big difference between thriving and surviving. i've seen a lot of people go all budget on lighting, only to regret the decision because the plants simply don't look lush, and end up buying a new fixture, and there went the budget. i cannot think of one person whom i advised on lighting who said they regretted it. only that they didn't do it sooner.