@bramedog
I do the exact same thing - works fine. Sometimes when the leaves get taller and actually touch the bulbs, they can get a little burnt, but I have a rope system where it is easy to raise the shoplights by whatever small amount necessary. My shoplights are spaced a ways apart, so the sdlgs directly under them get more intense light, but I just rotate the trays and they do fine that way. The fan helps make them stronger, and is also good to keep the potting mix surface dry and prevent mould/damping off.