Light burn and heat stress , if that continues you plant will sadly die ... you need to reduce heat or move you lamp a lot higher even leds need two foot away from a plant if the ppdf is strong ... if this helps please select me for answered question
Allontana le luci di altri 10cm prova anche mettendo il palmo della mano sulla cima apicale e controlla il calore se la mano soffre allontanale un altro pò. Per il resto è perfetta bravo!!
Looks like you're experiencing light stress, the leaves are cupping pretty severely and burnt tips + curling + some yellowing all point to that, back the lights off a bit, either dim them if you can or lift 'em up a bit