Specifications And Performance Of Light Bars That Contribute To Their Popularity

By Author: Sunil Punjabi
Total Articles: 2554
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The specs and performance of some of the modern light bars are surely going to blow away. A few hundred dollars can get you reliability and classy performance in all sorts of emergencies, in a way you would have never imagined. A lot of this could be credited to the use of advanced technology in the design and operation of the emergency lights and the improvement in the quality of light emitting diodes. LEDs have been able to solve two really important problems in recent times. Firstly, they can produce maximised and impressive output that is quite useful in every emergency situation, whether it is to warn motorists, as a signal used by law enforcement officials or for emergency lighting in rescue and search operations.

The second impressive aspect of LEDs is that they offer this optimised output with low energy consumption and great versatility which further enhances their value and their utility. A standard light bar uses anywhere between a dozen to couple of dozen light heads. These include LED light heads as well as halogen lights in some cases. The mix also includes corner strobes of two different varieties, ...
... the steady lighting models and those with built in flash patterns. The light bars are anywhere between 44 – 72 inches in length with the width more or less close to 12 inches. Impressively the height without the mounting feet is below 3 – 5 inches, for aerodynamic stability when mounted on vehicle roof tops.

The light bars are specifically designed to enhance all round visibility. They can do so with staggered lighting and options such as front bar, rear bar and full bar operational control, depending on the requirement. This allows you to use just a few lights especially when you want to send out a strong directional light in one direction. Operational control is further enhanced with an LED illuminated switch panel with push button, slide position and rotary switches for different operations like turning the power supply on or off, altering the flash pattern or operating specific strobes mounted on the light bar. There are knobs too in advanced light bars that allow you to control the actual intensity of the light, the beam angle and beam temperature. Beam temperature monitoring systems help in making the lights even more efficient.

High quality light bars usually come with LED linear modules and light heads which have optic spreading filters. This helps in extending the light horizontally and vertically based on the requirement. There are bars with split centre section modules too with 6 – 12 Gen IV LEDs that are capable of providing high luminosity. The mounting hardware includes driver and passenger side cables, clamps and suction cups. The modular design of modern bars is such that accessing any component is possible by removing just 4 screws. The chassis needs a special mention too, made of black composite nylon, polycarbonate or extruded aluminium. These lend structural support and vibration resistance while affecting good thermal management as well.

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