Can't tell you anything about lighting (except I hope you don't burn your house down) but good luck to you in trying to grow foot sized plants in a beer cup.......or even a six inch container.

Sounds like you have a fair amount of studying to do. At this point at a foot high you should be putting them in two gallon pots.
Weedhound Reviewed by Weedhound on . First time, having problems Here is my situation: Closet setup, am using a HID florescent ballast for the growth phase then will switch to a HPS bulb for flowering. I have been running the florescent setup 24/7 for a little more than a month now. Plants are beginning to reach a foot tall. Started the seeds directly in standard "kegger" red cups which i cut holes in the bottom for drainage. I will be transplanting to a 6" pot once the plants start to show gender. (will also switch to HPS 12/12 at this point) Rating: 5