I'll post this mostly for you Betty
and hopefully it'll be a good idea for someone else.
I'm using a big blanket bag with a heating pad under (set at low). I don't use the heating pad as of 3 weeks ago - they are up & growing well. These are mostly 8 oz dixie cups - all seeds planted in soil & germinated in there. About 60 seedlings here in all.
Notice the wood skewers to keep lid off leaves.
Here it is zipped W/ a 26 watt compact fl. (equiv. to 100 watts) centered over top-not touching.
Light is on a timer from 9 till 8. The foil over top reflects a lot more light inside.
It's not real pretty but it works...and they are healthy w/ only 25 watt light!
These are not good pics, but they really are all very green!
Patty