Setting up my First Grow.

Hello all, this is my first post on Cannabis.com, and i hope this will be followed by many many more. I hope you guys as a community might be able to help me out with my quest for better green :jointsmile:

The plan is, is i have an apartment closet to grow in, roughly 3x4.5x8(ceiling hight limit). This is planning on being the flowering room, along with that we plan on having a separate enclosure for vegging, i was planning on this being nearly 4ft long x 2 feet deep and about 4 feet tall. (Does that sound like enough room?) The only catch is that we can only flower 5 females at once, were also thinking of doing a "perpetual grow cycle" which would leave us 1 plant to harvest every 1 week and approximately 4 days.

My first problem that i need help with is this, my friend who sold me his HPS light lent me his MH to help out first batch of veggies grow fast. We plugged it in to his digital ballast in the apartment and blew the fuse. Ok, ok so we turn everything off, plug it in again, and the damn thing starts smoking and eventually blows the fuse again. I brought it back to the hydro store where he has a 6 year warranty and they said to come by on Tuesday to pick a new on up. Any ideas on if it will be a permanently problem, or just temporary. I'd hate to have to flower 5 large females with less then 400 watts.

Any comments or ideas would be greatly appreciated.