What color is the warning light of the fire engine?
Special vehicles use caution lights for color following unwritten rules:1, the public security department system of special vehicles using red and blue flashing lights2, ambulance, blood collection vehicle use blue lights
But in practice, the color of the warning light of fire engines is not completely fixed, and there are also red and blue lights with similar police cars:
4, chased the yellow and blue lights5, the special vehicles use red yellow and blue lights6, engineering vehicles, snow vehicles, sprinkler, tumbril, road wrecker, rescue vehicles, sanitation vehicles, buses and special vehicles use yellow lights
