I was brainstorming about how to go about cooling 16 Cobs at 40w each (1 Cob per sq/ft 4 Cobs on a long single extrusion x4) in a 4x4 grow area without spending an arm and leg. So I came up with this idea of using Extruded Aluminum heatsink from HeatsinkUSA the 2.079 x 0.464 x 40 inch (50.8 x...
