Yea you get more flexibility with the 4 than going with 2..just depends on how many you grow at one time i guess.I have 2 ms006 in a dr 90 and its TOPS! Really no worry about penetration in there..i sit seedling at the bottom of the tent and around other plants in bloom and have no issues..really i leave the lights in the top and move the plants up and down ..I would go with 2 msoo6 for less wires and hassle! The GN -spectrum and penetration is not hit on enough imho cuz it ROCKS!:X's Evil Laugh x:
lol too cool TANG should have given him a Wu hat lolTaNg's Thang