That's a lot of gear for under $400...:thumbsup:

...but, like ToPHeR31...said...the heat build up in the closet is the MAIN problem for closet growers. You will need a ventilation system; capable of removing hot stale air and adding cool fresh air. That's not easy in Texas, with spring/summer approaching. You will need to maintain temps in the 70-85 degree range, during the whole grow, which takes about 4 months. Most growers, use A/C to control temps.

Some of the stuff, in the package, I wouldn't recommend for a first time grower: unless you have studied for it.......

Coco Coir-Grow bags-Mylar (flat white paint is better)