What kind of ballast

[StirCrazy]

if you can find them I think your best bet would be to go with a Workhorse ballast, they are made by Fulham and are a high quality electronic Ballast that can run different bulbs even at the same time like a IceCap. the difference.. they are a lot cheeeper than a icecap, have a higher outdoor rating and also a higher noise raiting.

Steve