diy cree

This light build is for a small area, and I am using some inexpensive Cree CXA2520 and 2540 cobs. I must have gone through 10 sketches/schematics based on different cobs and current options for a small space (2x2 or 2x3). After jumping the gun and ordering some HSUSA heatsinks (2@ 21" x 5" and...