I had to run the flowering lights at night, to avoid too much heat, and it helped lots
Im in Colombia, and heat is always an issue here.
Had them from 10 pm to 10am,so i have times to work on them in the early morning and early night.
I run my light at night like @DMD stated. What brand size is your new light and old light?
Looks good, hope they flower well!
Move your little clamp on fan to just above the canopy, pointing up at your lights. It’ll help move cool air in and warm air upward, and help cool your lights. Other than that, your scrog looks fine! It’s more about how it works than how it looks, anyway, and it seems to be doing the trick.