Reliable Light Bar Police For Emergency Lighting

By Author: Sunil Punjabi
Total Articles: 2565
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Police light bars are used for emergency lighting, whether it is during rescue operations or as warning lights mounted on vehicles used by cops. Even administrative vehicles use these LED light bars accompanied by sirens. In fact, some light bars have built-in flash patterns which can vary in pulse and frequency based on a sound frequency. Such light bars also come with an inbuilt microphone with sound activation that can direct the flashing whenever required. Light bar police vans use is very useful because it is reliable and also extremely cost effective.

The cost effectiveness of Light bar police vans use is owing to two factors. Firstly they are energy efficient and provide very high light output with minimal input. The current in the circuit is very low and usually below 1Amp. The 1-Watt LEDs are usually powered by simple 12V DC power supply in most cases from rechargeable batteries. On top of that, the LEDs emit very less heat energy which turns out to be a saving when you are using dozens of 1 – 10 Watt LEDs. All these energy savings lower the cost of emergency lighting while also lowering the ...
... risk of running out of power supply on longer missions or search and rescue operations.

The cost effectiveness of a Light bar police prefer is also because of the light emitting diodes which are extremely long lasting with lifespan exceeding 100,000 hours in most cases. The LEDs produce beams with impressive luminosity and negligible beam temperature. The beam temperature can further be controlled through electronic mechanisms provided in advanced light bars. Even otherwise, vacuum formed housings with aluminum backings are used for thermal management. Polycarbonate base or thermally efficient plastic could also be used for the same purpose. Apart from excellent heat dissipation the encapsulation of the LEDs also helps in keeping the equipment, moisture resistant. The LED light bars are also vibration resistant and robust enough for heavy duty usage that they go through during rescue missions and during emergency lighting requirements.

Apart from being vibration resistant the Light bar police cars use is weather resistant and hence ideal for exterior mounting, in spite of snow, rain, hail or fog. The penetrative beams have impressive light coverage but the efficiency can be further enhanced through lens attachments which expand the beam angle. Colored filters are sometimes used in conjunction with white LEDs to get the desired colors. This is put to use in cop vehicles where red, blue and amber lights are usually seen.

An interesting characteristic of Light bar police use in their emergency vehicles is the modular or multi-segment design. Several LED modules can be configured together depending upon the requirement. By combining these LED modules made of individual arrays of LEDs, one can get front and rear facing LED lights. LED bars that can rotate add to the lighting coverage. Flashing of the beams can also be achieved through programmable LED modules which are controlled by simple switch control box. It is not only easy to turn on or turn off the flash patterns but also to toggle between them.

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