Dude, we are in the same boat
I`m swapping over to LED lights to handle the temp problem as soon as I can afford it.
Other tips that was given to me was to use a cooltube or a airhood reflector - both are viable options!
I got two small 24W fans and one air intake, one at the canopy, one at the lamp and one intake at the bottom of the closet with a output + filter on the top, but still struggling. Let me know how you fix yours!
And for the "less light", you should never flower on less than 250W, regardless of growspace.
Depending on your setup and financial situation, I would recommend to invest in a Airhood reflector with a 600W bulb or a LED plate (You can still use the 250W for Veg or seedlings).