Thats perfect, they dont need strong lights right now. Get a spray bottle and put 2 capfuls of peroxide and the rest water. Hit them with that when/if you see fluffy white mold starting, it will kill it on contact and not harm the clone. I keep my spray bottle right next to my box when Im cloning, and give em a light spray every few days as a precaution. If you have a heat mat, put it on a timer every 2 hours, you'll root so much faster. After the roots start unplug it. You'll know when roots start, the plant will grow up top