Speaking of Truck-Lite, they have some seriously cool stuff outside the North American market. Take a look at their M900 combination rear lamp for semi trailers, go
here and either wait for the M900 to pop up, or click about an inch below the "About" and "Contact" links near the top of the page, then click the red button below the picture of the lamp. Stop, tail, sequential turn signal, end outline (we say "clearance"), rear triangular retroreflector, rear fog, reversing lamp, and proximity-detecting driver-alert light functions all in one.
(Don't get old, kids...instead of going out on Friday night, you stay in looking at movies of truck trailer lights.)