2 easy cab questions

hey fellow growers I just have like 2 questions i need an answer to. i know i know you guys hear that all the time but these are/should be pretty easy to get answered. my cab is one from walmart and is 57"high 21 1/4" wide and 14 3/4" deep. now the questions are what size fan (was thinkin 4 inch vortex) and what size light(was thinkin 250hps or 400 hps no more no less). jus seein what the experienced growers have to say. thats bot all the info i need. by the way i plan on getting the pyrex tube to make the DIY cooltube as i have yet to find a hood/ reflector to fit the cab. THANX TO ALL FOR YOUR HELP AND HAPPY GROWING AND SMOKING MeAn

With a cooltube the 400 for sure. Fan bigger is always better because they can be modded to run slower and quieter and still move enough air. Not 4", at least 6, 8 is better. Just use an adapter to fit whatever will work, probably would do 6 on that myself.

thanx for the fast a$$ reply i GREATLY appreciate it. Sounds good to me. a few more funds and ill be on my way