Looking At The Design Of The Most Efficient Lightbars For Emergencies

By Author: Sunil Punjabi
Total Articles: 2565
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The design of lightbars has evolved a lot in the last couple of years. Technology has been used liberally and although some of the light bars are a touch expensive, the kind of features they provide could leave one agape with surprise. These light bars are designed to provide more than just a single functionality. When mounted on emergency vehicles, these lights could provide bright lighting, powerful warning signals and attention grabbing flashes in different situations for different purposes. Moreover, some of them even have traffic advisor panels which help in redirecting traffic if required. From highly focussed spotlights and flashlights for rescue and search missions to colourful flashes to warn other motorists on the road, these light bars are capable of everything.

High power LED sources are used in modern lightbars, because they are twice as efficient as their other contemporary sources. Their 85% efficiency, top energy savings and an extremely long life puts them way ahead in the race. From small 1W, 3mm LED elements to large 80mm 30W LED light heads, you can use anything for the configuration ...
... of the light bar. You can stack up hundreds of LEDs together to strengthen the light beam from the LED modules. That is why they are popular as they provide a chance for you to scale up or upgrade when the need arises.

Environmental friendly lightbars not only preserve energy but are also UV, IR, lead and mercury free, which provides ample reason to prefer them instead of other dangerous alternatives. Besides, you can preserve energy through a variety of functionalities like intensity control modes, lighting enhancement through lenses and deflectors and reduced heat dissipation. Aluminium or chrome reflectors ensure that the light from the LED elements is properly used. Anodized aluminium, ABS or polycarbonate housing is used for structural support as well as for thermal management. Tempered glass which is high impact resistant or glass filled nylon, is used to protect the lighting equipment.

lightbars often use high efficiency LED drivers and LED modules with built-in flash patterns. You can program the modules to flash in different patterns to create the most effective light signal, which can be spotted from a far off distance. With the help of slide in lenses, filters and deflectors, you can also adjust the beam angle which is an important parameter on darker terrains when you need wider coverage. Some LEDs are more than 3 or 4 times more energy efficient compared to halogen lights, which allows you to reduce the wattage and therefore, go with a smaller power supply too.

The surface of the LED modules in modern lightbars is sometimes treated with anti-ageing, electrostatic plastic spray, which enhances the longevity of the equipment further. Tough glass diffusers and die casting aluminium further strengthen the equipment. It is possible to control accurately the projection distance and optimize the lighting, which is why these are ideal for emergency vehicles. Sometimes, there are split segments with green, blue, red and amber LEDs for additional effects, making it hard to really miss the signal generated by the light bar.

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