Idiots guide to grow lights

Are you on commission for selling these lights, JJB?
Mine go on at breakfast and off at bedtime. The plants have been on the windowsill anyway until a couple of days ago and they'll go back there when there are some more tender seedlings.

Commission?  I wish.

I was a bit doubtful (and a bit tight) about leaving on all night, the adaptor got warm, and I didn't want  to risk fire at night.  They've done alright with on and off morning and night.  Let's face it I was never going to do this seriously with just clip on LED strips, it is just a bit of fun. Very interesting too.