Leave the leaves at least for awhile. Power producers, your buds will use it.

Like metal halide(bluish) after veging at the beginning of bloom cycle but really like finishing under hps.

Love the temps of a nice bunker, you can warm it up with lights if you try hard. Running a dehumidifier? And lots of fans, intake, exhaust, and on the plants. Mold can be a bitch.

White foam board makes a nice movable reflector wall.