My other hobby is Reef aquariums and for photosynthetic corals we've had a lot of luck using the chinese black box LED's so I'd imagine they'd work well for plants as well though they might not have enough red for fruiting. They're normally about 100 for a light that will cover an area about 2' x 2' After googling I found the grow light version of the lights I'm using on my reef (ie with the higher red levels for better fruiting and flowering) for 130 on amazon.