Tomato Seedlings coming up!

My first batch of tomato seedlings are coming up.  This is 5 days after I planted them.  Will keep them under the grow light for another day - keep the soil warm for the rest of the seeds to come up in the tray before I place outside in the full sun.   I don't want the seedling to get used to grow lights and would rather they grow under the full sun outside so I don't have to harden them off.  This variety is Mr. Stripey.  Its an old heirloom variety.