LED's are good, but LEC is superior, in my experience. Case in point, the same cut of Grape Ape under LED, and LEC.
Under LED (Area 51)
View attachment 3912913
The Grape Ape under the LED looks good, has some traces of purple, and decent resin production.
Under LEC (Phantom)
View attachment 3912912
Grape Ape under LEC is pure purple, has better resin production, and a much stronger aroma.
I've got 6" inline fans on each of the tents for exhaust, but the original question was if I was using cooled hoods, or not, you silly goose.