No, no, no. Don't transplant these autos. You will do more harm than good. I get that this is a small grow, but when has more root room ever been a problem lol? I'm just saying, you get some good root treatment going on here (aloe water and Azos, or even Root Exelurator(?) you will have a killer root ball in there.
Like other people said, rise the planters or lower the light. I keep my 600 watt just a few inches above where your 250 is at, and I've seen ill effects. Just check on them every five minutes or so after you lower it so you know nothing bad is going to happen. Do you have a fan blowing?
Cover the top dirt with Hydroton or gravel. It will help retain moisture, protect the roots from the light, and keep the soil cooler. If you are going the organic route, take the Hydroton off as flower happens and top dress with a high P and K top dressing then recover with the hydroton. Do that right after the stretch.
Good luck.