Hello! What I know about light is that a 600w Hps need to be at 24" from the top and a 250hps at 8" mostly because of the heat production , now you are running 5× 50w led that are producing less heat and your are at 24" : I would put them a bit lower except if you are doing that for a better light repatriation. Now your temps are almost perfect ( 17°C during nightime is only 1°C below the recommended temp ). Your air humidity is to low for that stage , you should be around 70/80% and 40% is for the end of flowering so try to use an humidifier or cut a bottle and make 3 holes to make a dome for more humidity. I hope it will help you 😁✌️🏼