First Attempt!

While you can't really feel the led heat until 10 or 15cm, 60cm is probably way too close for that light to the top of seedlings. Light burn is a real thing. Check your manufacturer's instructions, but I'm betting that 60cm is too close. I would think more like 90cm for a 1000w light, but I'm just guessing. My 450w light said 90cm for seedlings, unless you can turn bloom off and veg down? Anyhow, good luck with your grow.

Welcome to Grow Diaries! It's always nice to see new growers :) Good luck on your first grow fam 👍

Im thinking that an led light pulling 185w at the wall is not producing 1000w. That is a very bold claim by the manufacturer in my opinion. I have an led that pulls 230 at the wall and is equivalent to a 400w hps.i have another that pulls 675 and is equivalent to a 1000w hps. I'm no expert this is just my opinion. In my opinion 60cm it's probably too close for seedlings. I would go 80 to 90cm. With that light a 3x3 tent with one plant trained and maybe scrogged might produce more yield than 3 plants struggling for light and room. Always plant more than you need and pick the best and strongest ones to grow out. Best of luck to you!!

Good luck with the grow ;)