At first I regretted not going with SpiderFarmer or Mars Hydro based on the reviews and hype, but really, these lights have exceeded expectations. They are bright, very bright - heed the manufacturer's instructions on this page for using them or you can very easily overburden younger plants. I've since turned down the brightness and set it at the proper distance and my superhot pepper seedlings are growing great, nice and compact with perfect, deep green leaves. And, having 2 of these, I've saveSee full review