1). The backlight isn't overly bright, but it is noticeable. Whether it's street-legal in your area is going to depend on your local ordinances regarding forward-facing auxiliary lighting. 2). The universal feet mount are the same as Rigid's other RDS Series bars, and the light bar has the same dimensions as the dual-row RDS. 3). The bar technically uses spot beam optics, but due to the curvature of the bar, it behaves a lot differently than a spot pattern on a straight bar.