2 x $17 dollar custom ebay LED panels
2 x ~ $9 drivers
Old computer heatsinks and fans I had laying around
Few hours of assembly
Misc stuff I had (left over plexi, silicone, wire, etc.)
Total out of pocket cost was ~$52. This is the result sitting on top of a 6' 125 gallon tank. They need to be lifted up at least 12" or so, the light is WAY to intense directly under them. Still, they look pretty workable, especially for the price.
They will eventually go on a 3' 65 gallon tank.