Got them off Ebay actually a few years back. I love them, but took them off a few months ago because of weather/sun damage. They lasted for about 2 years though no problem.
LED W3 WHITE 2X 12" INTERIOR STRIP FOOTWELL LIGHT UNDER DASH BULB SMD EXTERIOR f | eBay
The link shows you what they were, just cheap LED strips that I hooked into my parking lights so they would only come on when I wanted. Mine were a Blue color but they come in all sorts of colors.
Hope it helps, im here if you have anymore questions -Steve