heatsink usa

I posted some pics of this light in the Microgrow forum, but I figured I would share here as well. I built this light to suit my small cabinet with interior dimensions of about 18" x 38". Using an HLG240H-C700B to power all 10 in series. 100% driver utilization! I went with the 7.984" heat...

Hey RIU, Lots of firsts here; first thread, first grow, and first DIY light build. Okay, I've got a two level armoire that we never use and takes up a bunch of space, so I'm going to convert it to a nice little grow cabinet so I can learn the trade and hone my skills before dropping the cash...