I was looking through the Whelen web site in search of things to do 3D models of for the heck of it when I spotted Whelen's 9M series lightbar. However, I looked at the feature list and it said that it can come equipped with a traffic advisor - strobe, halogen, or LED. Strobe TAs? How do these work, and have you seen them to prove they actually exist or is it a website error?
(I'll go ahead and model these. Pics to come shortly.)