Hey Forum!

Im new, i tried to make sure that im not clogging the Forum by asking stuff already discussed, forgive if i fail.

I have been struggling to find the reason behind a couple of my Lumatek Zeus being hot af, raising the temp in one of my three growspaces to 5°C more than the other two, and felt a little stupid to realize that one controller seems to be somewhat broken, still switching the correct On/Off times, but displaying that its running with 20% efficiency while in reality running full blast.
Heres where we get to my problem:
I have/had about 40 seedlings under those Lights (Lumatek Zeus pro with a whooping 1770μmol/s and 2.9μmol/J) which up until yesterday were suffering from being toasted and sweating in 33°C, but im not experienced enough to say, whether the damage is "too great".
Its a semi-comercial grow and im not really shooting for mediocre weed, so i cant afford to continue raising "ruinied" plants.
I appreciate any opinion!

Sry for the long text, but i figure the Info is relevant for people with similar problems in the future.