After getting sick of $20 bulbs and lights making my tank run warm. I have used Cree LEDs a few times and I was curious to try some cheaper ones. I decided on 3 14,000k and 3 royal blue. I'm running them on a 20w "el cheapo" driver. The heatsink I'm using I just one I took from an older fixture that I made. First off I just gutted the hood except for the fans. I decided to use some sand paper to rough up the plastic so the epoxy will have a little more surface to bite to. Got the heatsink epoxied in and I used some 3M snap lock to put the driver in in case it needs to ever be replaced. Here's it all put together on the tank. Seems like its the same amount of light just a bit bluer. The fans are running on 12v and are a bit louder since I believe the stock configuration on the biocube has them running on a lower voltage.