| The normal response of a human mind to an | | | | and volunteer firefighters as courtesy lights. |
| approaching emergency vehicle is that of | | | | Courtesy lights do convey to other drivers that |
| discomfort and trepidation. The combined | | | | the vehicle that sports the blue light would like to |
| onslaught of the siren and colors on human | | | | be allowed to go fast. But it does not give the |
| senses is obviously negative, mainly because of | | | | vehicle the privilege to screech through the |
| the type of jobs that emergency vehicles are | | | | street, totally disregarding road rules, and the |
| engaged in. Still, there is no denying the fact that | | | | conveniences of the other vehicles on the street. |
| LED emergency vehicle lights are bright and | | | | Amber is also a color that is part of the LED |
| beautiful. The LED lights that are used in these | | | | emergency vehicle lights spectrum. Amber light is |
| warning lights are quite suitable for a carnival | | | | also not indicative of any disaster or crisis, and is |
| venue, or for home decoration. | | | | a cautionary light. Towing trucks, or vehicles of |
| It is the screeching sound of the siren that has a | | | | law enforcement agencies followings processions, |
| stronger role in creating a sense of anxiety in | | | | use amber lights to warn other vehicles to move |
| human mind, than the blinking red, blue, and white | | | | slow. Parked vehicles like delivery trucks, |
| lights of a police car or fire engine. In fact, when it | | | | construction site equipments, or vehicles stationed |
| is used in police vehicles, it is only red LED | | | | on private roads, may also use amber light to |
| emergency vehicle lights that signify a potential | | | | make themselves visible. Police vehicles often use |
| danger or probable disaster. On fire trucks also | | | | an amber colored arrow stick to guide traffic. |
| red denotes the color of emergency. Since fire | | | | The light spectrum of LED emergency vehicle |
| trucks will be on the move only when a fire has | | | | lights is, however, not restricted to just blue, red, |
| broken out, it will always be an emergency. | | | | amber, and white. Rarely though, other colors are |
| Blue lights, as part of LED emergency vehicle | | | | also used. A green light is sported by volunteer |
| lights, are less indicative of danger. On police | | | | firefighters in some states and in some other |
| vehicles, blue could signify different things. | | | | states it is used by private security guards. In |
| Sometimes, a blue light is a communication from | | | | some states of USA, and in Canada, purple LED |
| the police to the occupant of another vehicle to | | | | emergency vehicle lights are sported by funeral |
| stop and respond to their queries. Or blue lights | | | | vehicles. Purple finds use in pilot vehicles in New |
| could be just a response to the awaiting public | | | | Zealand, while in Australia it is used in the vehicles |
| that police has arrived and will be in charge. Blue | | | | of people known as council rangers whose duty is |
| LED emergency vehicle lights are also used in | | | | to enforce government by-laws. |
| many places by emergency medical technicians | | | | |
