A Bar LED
light on an emergency vehicle serves many purposes. The absolute main purpose is to advise and warn of hazard and danger. Fire trucks, police cars and medical response vehicles all have some kind of light bar on them and that lightbar will invariably be of the LED variety. Police vehicles need the most versatility from their lights and the lightbar on their vehicles needs to be multi functional. A police vehicle will need hazard warning lights, take down lights, alley lights and possibly traffic advisors depending on their area of operation.
The sizes and huge variety of Bar LED
lights is huge, from the largest tiered bank of lights for a fire truck to the smallest dash LED light bar for inside a vehicle. The Bar LED
lights are shrinking and that is because the new generation of LED light is incredibly bright. The main benefit other than in light output of using LED light against all other light is that they use minimum power, and when you run your lights from a vehicle battery that's important. Other types of lighting on emergency vehicles used to create headaches for those that maintained the vehicles, as they often had to have back up power sources so the vehicle didn't come to a halt when the emergency lights had been running.
Any lighting on an emergency vehicle has to be reliable and be able to function regardless of weather conditions. The Bar LED
units that are in use today are fully encapsulated which means moisture cannot get in and cause any corrosion damage. An emergency vehicle needs one thing from its lights and that is that they are there and will light no matter what. LED lighting is very good in this respect and that is why they are now so common in lightbars and single beacon lights.
The versatility of the Bar LED
lights also makes them incredibly popular.
There is no standard set of lights for any emergency vehicle and they will all need something different from their lighting. A rural community police vehicle will need a different set of lights to that of a city vehicle. Bar LED
lights are tailored to specific needs and that is why they are now seen on all emergency vehicles not just police cars. State requirements for emergency vehicle lighting and the use of sirens will all be different so that is another reason why there are no one standard set of kit for emergency vehicles.
With different mounting and powering options the Bar LED
lights are now becoming so widely used that they are seen on many different vehicles. Municipal vehicles, heavy plant machinery, construction vehicles and search and rescue vehicles will all have some kind of Bar LED
light. In fact even shipping and coastguard boats and ships will have LED bar lights on them simply because they are very effective at what they do. Warning of hazard, informing of danger and generally making vehicles more visible is what you expect of emergency vehicle lighting and that is exactly what you get with the modern light bar units.