I used 60 watt florescent bulbs. It seemed to give enough light and not cook the plants. When the plants got large I raised the lid with yoga blocks and added larger bulbs.
I close the lid until the plant got around 2 inches tall. Keep an eye on the moisture. They need to stay damp when sprouting, If they are too wet when growing they may form mold. Use starter soil and clean all your pots from last year.
This project should be plugged into a GFI protected circuit.