max huff
Member
12x12 roughly with 7-11ft ceiling (pitched). Planning to run Blockbuster 1kW and UVB hanging in the end, 4-5plants per light so total of maybe 40. Question is, how many of these would I need to provide enough UVBs? Is there a math equation or something for figuring this out? 
http://www.amazon.com/Zoo-Med-ReptiSun®-Fluorescent-24-Inch/dp/B0009YHSWK/ref=pd_bxgy_60_img_y
http://www.amazon.com/Lights-America-7020-Fluorescent-Light/dp/B00004WA4D/ref=pd_sim_199_2?ie=UTF8&refRID=1160QTHWDHK8H9F6EW1R
http://www.amazon.com/Zoo-Med-ReptiSun®-Fluorescent-24-Inch/dp/B0009YHSWK/ref=pd_bxgy_60_img_y
http://www.amazon.com/Lights-America-7020-Fluorescent-Light/dp/B00004WA4D/ref=pd_sim_199_2?ie=UTF8&refRID=1160QTHWDHK8H9F6EW1R