BigE, I wouldn't jump on those headlights as they won't fit 08+ armadas. The tabs on the bottom of the lights are giveaway signs for 04-07 since they have a plastic filler that snaps on the tabs. On 08+, the bottom of the headlights has a slightly different shape on the bottom of the lens. It sweeps upwards from the center to the corners; just look at your bumper too since there are no plastic fillers either to fill in the gaps.
Plus, those projectors are garbage anyway and provide no upgrade whatsoever in lighting output.