put the lights about 3-4inches from the dome....The nice thing about Fluro's is that its almost impossible for them to get hot enough to actually harm the plant. But they don't distribute a ton of light over the space that you probably need. i would say leave the fluro's off above the dome until the seeds break ground and are just about to drop the seed casing and you can see the cotyledon (first 2 leaves) they'll be yellow. then if your moving your plant(s) out of the dome into your growspace put them about 3 or 4in from the fluro and move the lights as they grow

Thats just in my opinion, thats how a buddy of mine did it and it worked well for him. good luck! :stoned:

"I don't grow, any advice or talk on growing is pure speculation"