Wow, that looks like a fun toy...
Just got one of these rigged up on my truck
FRC 12V Scene Lights (A0876)- Fenton Fire - Used Fire Trucks - We sell quality pre-owned fire engines, tankers, ladders, rescues, ambulances, quints in USA, Canada and beyond.
bought it a while back for $35 on craigslist (yes, I carried a spoon to the meet)
This thing is insanely bright.....after it warms up..