The one that Dave posted below is the one I have had for several years. I spent quite some time this afternoon trying to find the people I got it from. I added a flasher unit to go with it...got the flasher from Rivco, tied it all together in the trunk....took out one tail light to access the wiring. The bar is always on, when I hit the brakes, it flashes real bright 15 times in 5 seconds then stays steady. Everyone says it is very effective.
