Recently received this and had time to finally make a video. This is a special order bar for the London Ambulance Service. All blue LEDs are activated by a single wire and the rear red is also activated by an independent trigger wire. There is also a Whelen WSSC30 self-contained 30 watt siren in it that is paired to a Woodway Siren Testing Volume Reduction Unit to further reduce the siren output. My assumption was that this was used for a golf cart / UTV type response unit. The LAS441 spec was created 10/31/2011 with this specific bar made 11/06/2012.
