A cool tube would work great in that setup. These lights use what is called a MOG socket, it's about 1" round and ceramic. The voltage to run HID lights is about 277v A/C. A 6" vortex fan can provide room exhaust and take the hot air out of the hood to keep things very cool. You would need a "Y" adapter and even a damper to use one fan for 2 jobs but that is not to expensive and east to setup.