CDC has also engineered the Ducktail spoiler without the LED light to meet their true vintage design goals, but CDC understands that some customers wish to have the optional 3rd brake light so they created a system that does not intrude on the design efforts of the spoiler. This optional 3rd light mounts inside rear window. This 18” LED light is DOT (Department of Transportation) approved and adds a high mount high tech look when brake is applied and is otherwise invisible.