Programmable led lightbar can have different light patterns such as arrows and the like. Led lightbar is more convenient to use with the various patterns it creates that easily understand by motorists.

Lightbars become more handy and effective with the use of LED. Before, light bars are simple metal bar attached in the roof of the car that serves to mount sirens, beacons and other lightning devices. But that was back then; now it has rotating or fixed beacons or the flashy colors.

There are no over precautionary measures when it comes to safety. This is one of the ingenious things ever made by humans. Purposely it is used mostly in police cars, emergency vehicles and other big truck that serves as a warning for other motorists. Since it was used in police cars and other emergency vehicles, lightbars are called emergency vehicle lighting that some are accompany with sirens. But today, the so called led lightbar is seen in business establishment as sign boards.

The used of emergency, police, and federal lightbar have especial jurisdictions and that users have special legal power. This legal power allows one to have maximum speed on the road if have to. The use and colors may vary in different countries. Like in police, red and blue led lightbar colors are mostly being used.

In some countries, mini led lightbars are used on public transport vehicle like in bus and taxi. Customized led lightbar is made to give exact fit in the car and the fact that lightbars are being used for light rather than sirens, new led lightbar models eliminate the sirens to give more space for catchy lights. The sirens like in ambulance are place in the bumper. Different agencies that use these lights have their own variation that meets their specification and need. Also light bars are being modified to decrease air resistance when the car runs in full speed.