I have one of those number plate light cameras.
I got the non led one, so both lights match. You use your existing bulb and connector - but I had to buy a used light from a polo as the connector in my golf didn't fit inside the new camera fitting.
I wouldn't recommend it to be honest. The camera points too far down, so you can only see the ground, and hardly any of the surrounding areas because of the way the camera is angled.