Besides these main emergency vehicle lights, there are smaller lights on most emergency vehicles known as auxiliary lights. These help the vehicle users in their jobs in various ways. More common auxiliary lights are spotlights, floodlights, load lights, alley lights, and take down lights. The most common face of emergency lights is the LED light bar with its blue, red, and white lights. It is a frequent sight on most streets as the police have these lights on their routine patrol cars, as well as on their vehicles engaged in emergency services. Emergency vehicles lights are the insignia that demarcate emergency vehicles from the rest and give them the right to cross speed limits and ignore other traffic rules. Emergency vehicle lights, sirens, communication devices, medical equipments, and other duty aid devices carried by emergency vehicles are collectively known as emergency vehicle equipment. Different types of emergency vehicles will have different devices that form part of this larger equipment pool, but a common item in many of them, besides emergency vehicle lights, are what are known as auxiliary lights. The more conspicuous emergency vehicle lights are larger light bars, strobe lights, rotating beacons, smaller deck lights, dash lights etc. Auxiliary lights are necessary to aid in the work that the vehicle is involved in, or to supplement the light provided by the more prominent emergency vehicle lights. Small spot lights mounted on the top, sides, or back of smaller emergency vehicles, and larger flood lights that can be fixed the same way in larger vehicles, to provide extra illumination are called auxiliary lights. Ambulances, which generally use rotating beacons or light bars as its main emergency vehicle lights, may have auxiliary lights known as load lights near its rear doors through which the injured individuals and attendants get in. Towing trucks or other emergency vehicles, which have cargo doors, for extra light in the area surrounding the cargo door, may also use such load lights. Police vehicles, which use LED light bars as emergency vehicle lights for warning as well as traffic direction, use additional lights known as alley lights. These may be mounted on the sides of the police vehicle, or on the sides of the light bars itself. Alley lights are necessary to light up alleys, that is, both the sides of the road through which the vehicle is passing, as the main light will be designed to focus forward. Take down lights are lights added to emergency vehicle lights to light up the interior of the car in front, which the police vehicle might be searching or chasing. These lights help the police in spotting contraband items in the car, or people who are trying to hide or escape. The high intensity take down lights are also useful in temporarily disorienting suspects with its brightness. Even where the police are not chasing another vehicle, takedown lights help the main emergency vehicle lights in illuminating a crime scene or an accident scene in front. The quality of take down lights also help in improving the quality of the photographs and videos done of the vehicle in front, or of the crime scene or accident scene ahead. Though they are small, auxiliary lights aid emergency vehicle lights, in their job in a big way.
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