A high quality police light bar is extremely versatile. In other words, it has equipment installed on it for all kinds of scenarios. Full-fledged police lightbar comes with linear LED modules, linear and rotating strobe lights, corner LED modules, forward facing and rear facing lights, alley and takedowns and sometimes staggered strobes. All these lights come handy at some point of time or the other. The great thing about advanced light bars manufactured in recent times is that, most of them use LEDs, and hence are highly energy efficient. It is incredible to note that in spite of such a great collage of light heads, the light bars can be powered through a simple 12 30V DC power supply and the peak currents are not too high either.
One of the most sophisticated features of a police lightbar is the independent control for each light head. This makes it easy to operate these lights. Moreover, the low profile design with a low height makes installation of the light bars very easy. The aerodynamic design also reduces drag resistance on the vehicles. The modular construction of the light bars makes every single component in the light bar easily accessible and hence independently replaceable if required. This accessibility makes the light bar highly reliable, because you wouldnt see them break down just because one module or a single light head is not functioning properly.
A police lightbar usually has a die cast aluminum or ABS housing for rugged durability. Besides, with so many lights, all of which have to be operated at the same time in case of an emergency, heat dissipation has to be very efficient. Polycarbonate bases are used along with extruded aluminum casing to make the lights not only sturdy but also vibration and moisture resistant. Thanks to this sturdy but lightweight construction, the light bars function effectively irrespective of the heavy duty handling and bumping and jarring faced due to vehicles speeding on uneven terrains. The strobe lights and LED modules facing all 4 directions ensure 360-degree visibility, which is one of the biggest benefits of using a sophisticated light bar. The light bar segments can be easily mounted on the roof of the vehicle with the help of swivel brackets and suction cups, stainless steel straps or bolts.