My auto seedlings are short, is the light too close or is it the temperature?

@trilliumtrichomes - now that shit was funny👆🤣🤣🤣. In all seriousness though dude, I think ur stress’n the details too early in the game. You got a few seedlings that are just starting out so kinda hard to tell just yet what they may or may not need. You’re climate and current environment suggest that all things are fairly optimal and no need to make any changes (although a space heater is a big help when needed. I use a small heat buddy when it’s too cold inside the box and it’s perfect for a 3x3 tent the size of a broom closet). There is one element that I would address now however and that’s your light. I run a couple SFs as well and my first suggestion is drop it down now to about 24” and crank that dimmer back up to 100%. These are terrific veg. Fixtures and I’ve never personally had need to mess with the dimmer function. I also have em I n lower headroom and run them consistently at about 16-18” in all stages - no issues. Your seedlings are just starting on those first two leaves so it’s the perfect time to start hitt’n em with all the light they can take. Although I’m not a fan of running a 24 hour straight light cycle without a break - to each their own. I usually run my auto cycles on a 20/4 light sched. Just to avoid any potential stress issues. Best I got for u dude - good luck with the grow👍😎👊