Light height

At this early you only want your plants between 100-300 ppfd. I run my lights around 20% at 18" at this stage. 100% at 16" is going to cook your plant. During veg my lights don't see above 50%, once you're in flower is when you're going to be cranking up the watts!

120 Watt at full strength is too much for sure. I recommend you download a PPFD meter on your phone and see what light you are giving your seedling. It’s best to give seedlings roughly 250-350 PPFD then slowly raise it to about 550 PPFD around week 4. I like to keep my lights around 18-20 inches away and turn my intensity up or down depending on what stage of life my plants are in. I hope this helps. Also, don’t water that little girl for a few days. It’s easy to drown them this young.

I dont know if i can help if u keep the light that close and keeping temperatures not to high with nice ventilation u should be good u might eventually rise up the light as it streatc

Yes. It is way to strong that close. Double your distance at least. Careful not to overwater as well.