I'm thinking of starting a 5x5 grow tent and using LED lighting. However I want to hear what brands of LEDs the community likes. I was looking at http://www.amazon.com/MARSHYDRO-Bright-Powerful-Sp... I heard somewhere that the recommended amount of LED lighting is 25 watt per square foot. However do I need to worry about actual wattage (445 for this light) or the output wattage which is 900w? I understand lumens are more important all in all, but it seems like no LEDs list them so there's really nothing for me as a noob to work off of. q_q