gorilla glue#4 first indoor

Hey they look like they are off to a great start. I would pluck some of those leaves on the top that are blocking light to your lower budsites. Then continue training for another week or so to get a nice wide canopy on them before switching to flower. That extra week or even 2 can improve your yield a lot. Good luck with them.

LEDs are well known to provide ar least 0.5grams per watts when the others conditions are good so in your case 600w×0.5 = 300 grams so you can achieve your goal. Now you have a big tent ( I call that a big tent ) but only one light, the best would have been to use 2 300w instead of 1 600w for a better light repetition. Your goal is 100 grams per plants and hopefully you choose a strain known for her weight production ( and potency ) so that strain + your light is a great combo. And don't forget that the light , space and strain are important but the feeding is primary