interior lights

I have seen these things on many different cars, they are usually in AC/heat vents. They are little LEDs and they light up at night. I think they are very cool but I cannot seem to find the name of them or any brands etc. I probably am making no sense but if anyone knows what im talkin about please help.

From what I know... they just use regular LEDs and just tap them into the lighting behind the dash to light everything up. BTW, this really should be in the interior forum, and not the exterior forum.