Grow Box (Help)

Im somewhat new to this entire indoor deal.Any help would be welcomed.My metal tool box had double doors its aprox 32x32x25(deep)I have painted the inside and wired 2 xbox fans along with 6'clip fan(inside)Currently have heat pad under tray for germ help.All 4 seedlings have poped up.1st question:Should I keep the heat pad under the tray?Or can I go ahead and remove it?Seems to help with temp which stays around 72/75.I made the trip to home depot but could only find 27watt/5500k (Cfl) will these work for (veg)?I had doubts but thats all they had?Can anyone point me in the right direction?And just how many bulbs would you suggest for this box size?Should I use (if I can find?)say,2/6500k with 2/2700k at the same time?I have the timer set @18/6.My strains are WW & bubblegum both from nirvana.I would be thankful for any help I can get.I just hate to waste light , energy & seeds. Also would anyone use (Eco plus)105watt or 150watt full spectrum (Cfl)bulbs?Thanks in advance for any help,suggestions.

The more light the better as long as you are not having heat issues. You want 6500k lights for the veg phase and I think you can remove the heat mat now that they have popped. Using multi spectrum lighting isn't that helpful during veg. You can mix it up some for flowering if you like. I hope that helps.

Thanks for the help.