The Halos on these specific lights will be wired directly into the parking lights. You can also wire them to key on at any time by running the black wire to a ground and the red wire to a direct ignition switch.
They will only fit if the truck does not have a Utility Grille or H4 Sealed Beam lights. (Most F450/500 applications have one of these two restrictions.)
Complete the job with these highly suggested add-on products.
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