Newly planted and unestablished clones require very little light with little intensity. They may need some help keeping their limited moisture in, so creating a humidity dome over them or spraying with a NoWilt product might be in order.

Were the clones rooted at all? Or just clippings? Ive never had good luck just planting clippings that were not rooted. Did you use Rockwool?

More information is needed. Finally...cloning is something you have to learn. Give yourself time to make mistakes. It took me a few good tries before I got down a system that works at 95% success rate.