Greetings. Starting a closet grow space; 2ft wide, 6ft long, 9ft tall. Using a DWC hydroponic system; two auto flower plants in a 2 gallon tote. Any recommendations for a first lighting system? I am thinking somewhere between 400ws to 600ws. I am also imaging that I will want a system which will not produce too much heat for my closet space. I was looking on Amazon, but there are many options. I am hoping to grow more flowers eventually, but want to start out small at first. Please and thanks for the info.