The second common form of emergency light bars are strobe lights. Rotating light bars consist of a light bulb that is surrounded by a mirror, which circles the bulb.
Websites have an assortment of emergency light bars at a variety of prices. Strobe lights work more effectively than Round LED Panel Light rotating light bars as the bright flashing light better draws the attention of a motorist.

However, LED technology is the widely preferred form of emergency light bars as they are much smaller, are brighter and last longer than both the strobe light bars and rotating light bars. The best place to shop for emergency light bars is on the internet as there is an array of choices and you are most likely to find one that matches your specification. LED light bulbs have proved to be a favorite especially for police cars as they have shown to be the most effective form of emergency lighting. Also, make sure that you give way to any vehicle with its emergency light bars on to ensure that emergency workers serve us to their best. It is this mirror that creates the flashing light effect. Emergency vehicle operators who are constantly exposed to the bright flashing lights for long periods of time also run the risk of developing eye complications. These work best on emergency vehicles and are preferred over the others as they are also the more environmentally friendly option. Strobe lighting on the other hand cannot be used for many other things other than emergency vehicle lighting. This has however been replaced more recently by light-emitting diodes (LED light). Traditionally, emergency vehicles used the rotating light bar for emergency lighting. It is important however to explore different options before purchasing the light bar as there are many different options that could suit you at different prices. The technology used in strobe lights is similar to that used in flash photography. This is both expensive and time consuming, they are also generally unreliable. It is paramount to conduct sufficient research and look for bargains to ensure that you get value for money. The down LED Bulbs side of the rotating light bar is that the bulb needs to be changed regularly. The brightness of these lights can also cause glare on the rear view mirrors of other motorists. Strobe bars are used primarily by large construction vehicles, as they alert the driver of a heavy on coming vehicle.
emergency light bars are an essential part of an emergency vehicle as it is used to warn motorists of pending danger, warning them to give way or to pull over.
Strobe lights work by ionizing and discharging a current inside the tube, igniting xenon gas, which is typically used in these lights, thus producing a high intensity light that flashes frequently.
Purchasing emergency light bars can cost you anywhere from $200 to $600 depending on the quality or type of light bar that one wants to buy.