when the seedlings pop up from the cubes, put them under floro light for at least a week or 2. then if they are big enough, hit em with the big light.
you can place the flros as close as possible with out touching the seedlings, but at least one inc, cause if all goes right, you`ll need to move em up every day. also, only use 50% nute strength solution until your plant gets a few sets of true leaves.these young plants are ver delicate in the first few weeks, so be careful.

#2
if i were you, i would buy a good surge protector, like one that is meant for construction type tools, grounded of course, that is what i had to do, it works great. that way it only pops the surge protector instead of the house breaker, if an overload occurs.