Cooling question

[RollingRock]

alright i need some help.
This is my current setup. I prepared these pics on my fancy note 3. the little pen finally gets some use!

Although ive got my humidity up some (probly as good as im going to get without humidifier), but im still seeing temps of 86 and ive already dimmed my ballast to 450w.

Is it reasonable to see my temps drop to the mid 70's if i spend a few bucks and get an aircooled hood and set it up like this?

disregard the 87 temps in the second picture. as we do not know yet lol
thanks in advance!

 

[trichomes]

that will do it! just research how many CFM is recommended by the hood vendor. maybe filter air before it is exposed to plants, not sure on this but I see filtered air going over bulb then out??.

 

[JJ Bones]

Yes, second diagram is what you need