Federal Signal AeroDynic 25RQL-TCL

And another great example of a bar from my buddy down in TN.
The RQL series would be the curtain call for the "Halogen" line of AeroDynic. Replaced with the ADX LED series before the eventual lines discontinuation.

This light would be the evolution of what the 25 CF would become, from Crossfires, to Meteors. Personal Opinion is Crossfire without a doubt, but both series were effective at their jobs.