So I got bored and did what I usually do when in bored, I needlessly improve things.

I improved my lighting system which used to run directly off a large switching power supply. It now runs off a 20v Dell power adapter which then feeds into a buck dc-dc converter which drops the voltage down to 6.4 volts and a Max current of 2.8amps with over 90% effiency. I then feed this into the light itself. The setup is working perfectly so far.