Got some Bosch Compact 100 driving lights (w/ Narva Rngepower bulbs) on the way to supplement my high beams, but also came across a good deal on some Hella 1000FF driving lights with HID's installed. Would like to install these as additional OR-only lights around the ranch, with an independent switch that is in no way linked to the low or high beams. What components would I need to hook them up? Do the ballasts need to be put in some sort of weatherproof housing? I work on an orchard so there's always a good possibility of splashing muddy water up into the engine compartment, and EVERYTHING is subject to LOTS of dust in the summer.

The ballasts are made by Hella and have the following #s: 5DV 007 760-47 d2s;d2r 2000h.

The ballasts & bulbs are already hooked up to the lights...just need to know what kind of wiring/relay(s) are needed to get power to the ballasts...