hey guys i have 15 23watt and 360 watts on my each wall, the trick is for flowering are small incandescent bulbs 23 watts equel 100 watts but they need to be FULL SPECTRUM THATS WHERE u get all the different spectrums trust me my plants are 12 weeks old and over 4 ft tall . good luck
make sure the exhaust fan is at the top of your room and the intake air is on the bottom. heat rises i have a 4 by 4 by 7ft tall i use mini florescent full spectrum and they cut my electric bill by 60.00 dollars and flowering is wonderful. good luck and yes don't tell anyone
i grow with mini florescent bulbs witch equal a thousand watts in a 4 by 4 by 7ft tall and i harvest every 3 months make sure u have the right air pushing through the room
i switched to compact fluorescent full spectrum, beautiful results plus a fart fan running 24 hrs. my room is 7ft tall by 3 1/2 by 31/2 and i have eight plants in five gallon buckets