Bastardman
Member
The 450W is almost like a 1000w hps.Seedlings I would put close to that light from 2nd set of true leaves dimmed down then keep it close and dim it up to harden them off.
Clones I would put them straight under it at full strength a couple foot away to start til they start to stretch then lower it incrementally.
Once they are hardened off and used to that light I would keep it as close as possible at all times.
450W is fuck all really
Check the spider farmer sf4000 for a better understanding of my light.
I ran tomato seedlings under it dimmed to 20% at 80cm and it bleached them, so there is no fucking way im putting weed seedlings anywhere near them.
Thanks for your reply all the same.