bumper light

Hi, I was wondering if any of you can tell me what the black plastic piece is that is mounted dead center of the bumper? Is there a sensor behind it? Or can it be used to mount a light bar in?

Thought I would include a great local company from where I am from. Bronco Kit - All Kit Links All of the parts are Made in America, Lifetime Warranty, and High Quality. They include the ability to pick between Clear and Amber lights for each kit. 40" Light Bar Roof Mount Kit - $999.99 Ditch...