Need opinions please

First grow has about 4-5 weeks left until harvest. It is one single plant. I just upgraded to a 600w HPS from a 150w HPS. Temp was an unforeseen issue (i got two 6inch inline fans, thought it would be enough ). I am buying a cold tube in the next week or two. Until then, I can only maintain the temp at 86F.

QUESTION: Should I keep the 600w in there @ 86F or switch back to the 150w @ ~75F until I get the cold tube?

P.S. I've exhausted all my available resources to try to get the temp down, it was around ~90 and was able to get it to a steady 86.

THANKS!

in my opinion 86 isn't that bad. I wouldn't be too concerned about that

If its soil you should be ok but if hydro watch your water temps!

I decided to try keeping the door open, and doing that I can get it to stay around 82 now, so I should be good now until I get my cool tube.

Thanks a lot for the replies

Anything between 70*C-85*C is ideal Although i heard/read anything over 85*C can sometimes slow and or stress growth.
But i think you should be fine til you get your cool tube