A Policeman and His Flashlight
A flashlight is a policeman’s man Friday. He needs it everywhere and for pretty much everything. A night patrol policeman who does not have a flashlight at his disposal is like a chef without cooking pans. Flashlights are mandatory to light up the area that he is patrolling, to beam into any vehicle that he wants to search, to search the baggage of a suspect, and to examine the documents that establish the identity of a person he is questioning.
A flashlight quite frequently doubles as a weapon for a policeman. A strategic hit with a heavy flashlight on a sensitive area of the individual is a tactic that has all along been used by policemen for subduing violent criminals. During crime investigation, a flashlight is all important for collecting evidence. Flashlights with blue LED lights are often used by policemen for combing a crime scene because body fluids like blood show up better under a blue light. Flashlights are equally important while searching basements and cellars in which a suspect could be hiding or concealing his booty. Since these areas typically tend to be dark, extra bright flashlights are required for making a thorough search.
During an unexpected encounter with a bad guy, policemen beam a strong flashlight on to his face to disorient him. The disorientation could be only for a few seconds, but that will give the policeman enough time to punch a criminal at a sensitive spot and subdue him. Small, intense flashlights are held under the gun by policemen while shooting, to see their target correctly. Many policemen hold their big flashlight in an overhand grip, and expert policemen manage to deflect the bullet with a flashlight when a troublemaker shoots unexpectedly. For all policemen who carry flashlights, it will be good to have a flashlight holder where he can rest it when he wants to use both his hands to do some other job.
While buying flashlights, it is important to check how long the charge will remain. There will not be a worst mishap for a policeman if his light conks out during an operation. During off-road adventures, it is best to keep an extra flashlight in reserve in the ATV.
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Use of LFS Technology in Fire Truck Siren
Being big and fiery red, a fire truck is quite an eyeful. And a fire truck siren produces a hell of a lot of noise so that it would appear that it is impossible for other drivers to miss it on the road. However, the reality appears to be somewhat different. Even with its flashing light and screaming firetruck siren, a fire truck does not always manage to get the way cleared for it to proceed at the required speed.
One main reason for it is that the drivers of other vehicles fail to hear the sound of the fire truck siren. The siren may be loud enough, but most cars are noise proof. And the drivers could be listening to music or radio, or talking on a wireless phone, or their children could be blocking out all sounds by bawling to glory in the back seat. They simply do not become aware of the fact that a firetruck siren is screeching behind them.
The introduction of LFS or low frequency system technology is suggested as a solution to this problem. The system interacts with the fire truck siren to produce a signal tone that is then routed through woofers to produce low frequency sound waves. These sound waves are different from the regular ones in that they have the ability to penetrate solid materials. The drivers of other vehicles are then alerted because they ‘feel’ the vibrations even if their ears are plugged. The technology is quite effective in warning pedestrians as well as other vehicles on the street and has some definite advantages over the commonly used sirens. However, everybody is not in favor of introducing this technology in a firetruck siren.
Some are of the opinion that coming into contact with such vibrations are more harmful to the body than listening to the high decibel sounds of a screeching siren. It is contended that these vibrations could cause a stress response which in the long run may affect the nervous system if the individual is exposed to them frequently. It is also suggested that such a fire truck siren would put the vehicle operator also at increased health risks as a result of constant exposure to the low frequency sounds.
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The Importance of EMS Lights
All emergency vehicles like police vehicles, fire trucks, and ambulances use flashing lights and screaming sirens with equal effect to get space to move fast on jam-packed streets. But in the case of EMS ambulances, because of the way they function, EMS lights are more important than sirens to ensure optimum performance.
The ambulances of EMS, the acronym for Emergency Medical Services, are different from ambulances that are used just to transport a patient or a body. These are equipped to provide as much medical care as possible to a patient who needs immediate medical attention. So EMS lights have to be bright, adjustable, and more in number than that of other emergency vehicles.
EMS ambulances will have trained medical personnel like paramedics, nurses, and medical technicians for bandaging wounds, or giving injections or intravenous drips, as required. Proper EMS lights of the right intensities are a mandatory requirement for performing all these. In other words, EMS lights should have the ability to make the interior of the ambulance into a temporary clinic.
Small pocket lights and flood lights invariably form a part EMS lights. Most medical technicians carry high intensity pocket lights with them, and most EMS ambulances would be fitted with flood lights in the inside. These are a must for getting a clear view of a wound to clean and bandage it, as well as to find a vein for giving an intravenous injection. Good EMS lights may become necessary for the police also for solving a case or providing information to relatives of the patient. Police jobs like collecting evidence found on a wounded individual, gathering information from a patient wounded in a fight or accident, and identifying a victim or a suspect, can be done better with the aid of the right type of EMS lights.
EMS lights come in varieties of combinations. One two-in-one equipment that comes in handy for police as well as medical technicians is a combination of a camcorder and flash light. Recording videos of the accident location, evidences, and the patient’s words can be quite helpful for the police in cracking the case, as well as for the hospital for treating the victim.
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The Need and Needlessness of Emergency Sirens
The screams of emergency sirens are not music to anyone’s ears. While its screeching is unpleasant as it is, available medical data also confirm that continuous exposure to high decibel sounds like that of emergency sirens would eventually harm a person’s hearing enough to diminish his ability to enjoy good music. Despite that, except those who have too much of cynicism or narcissism in them do not complain about the noise pollution because they are all too conscious of the fact that emergency sirens are deployed in the process of providing humanitarian help which they themselves may require at any time. Ambulances, police vehicles, and fire trucks, the vehicles that most commonly use emergency sirens, use them when they are rushing to provide assistance at places where it is badly needed.
Though the attitude is as it should be, the fact remains that continuous exposure to the sound of emergency sirens can adversely affect the health of people. People living in the vicinities of fire stations or hospitals are more likely to suffer the consequences of it. As such, those driving ambulances, fire trucks, and police vehicles can also do their best to minimize the use of emergency sirens and reduce noise pollution. One way in which they can do it is by having a clear picture of the situation they are responding to. Every patient who needs an ambulance may not be in a condition that a difference of five or ten minutes could tilt the balance one way or the other. So far as the ambulance driver knows that the condition is not too serious, he can control the use of emergency sirens and reduce the inconvenience to other drivers and pedestrians and residents of both sides of the street.
It is the same in the case of fire trucks also. If it is a genuine emergency, they have every right to flash through the roads with their emergency sirens at full throttle. But there are many instances when fire trucks have returned after proceeding halfway because they got information that the problem has been solved. Should emergency sirens have been activated at their deafening best when proceeding toward such situations? Worse, some drivers use them even when they return!
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Emergency Light Bars Are Lifesavers
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The fire truck emergency lighting provisions, which help their host vehicle to travel fast through crowded streets, also help in preventing loss of life. The earlier a fire truck reaches its destination, the lesser would be the number of lives lost. Firefighters cannot function proactively like the way the police do, and they act only in response to a dangerous situation. But the faster they bring the condition under control, the lesser would be the injuries and damage.
Because of the importance of firefighters in saving lives, in many states voluntary firefighters are also allowed to use emergency light bars. However, the use of emergency lighting does not allow voluntary firefighters to overtake other vehicles the way fire trucks and ambulances do. The emergency light that a voluntary firefighter sports is known as courtesy light and its presence only translates as a suggestion to the other drivers on the street that it would be helpful if they would let him proceed faster.
Of all the emergency vehicles, the ambulance is the one most committed to healing pain and preventing loss of life. This makes the emergency light bars on ambulances extremely important. Ambulances differ in the way they give aid. One type of ambulance is used for shifting patients from an accident venue or a home to the hospital. Emergency lights are comparatively less important in them. The other type, known as EMS ambulance is better equipped and will have in them paramedics and other trained personnel for attending to the patient in need of emergency care. Right emergency lighting goes a long way in ensuring the functionality of an EMS ambulance and saving lives in the process.
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Cop Lights Varieties
Since the police are forever chasing criminals or searching for evidence, and quite a lot of it is done at night, good cop lights form the mandatory man Fridays without which it will be impossible for them to function. Among the variety of lights, a cop car spot light, which projects a strong beam of light onto an individual or a place, is extra important. Based upon the way it will have to be used, a cop car spot light can be mounted on different parts of the police vehicle. Cowl, which is the bottom portion of the wind shield, side roof, door etc. are some of the places where cop lights can be mounted, besides the regular spots like rooftop, grille etc.
Handheld spot lights are also very effective cop lights since they can be turned in any direction and can be taken very close to the object to be examined, unlike the lights mounted on the vehicle. Many a handheld cop car spot light will have a mounting option as well, and will come with a portable battery pack. Many cop lights are a combination of a spot light and a flood light, and some are a combination of spot light and flood light and warning light.
Some cop lights combine in it the functionalities of a cop car spot light and a thermal imaging camera. Since the cameras in such cases use infrared sensing technology, the glare of lights from the other vehicles on the road will not affect the precision or clarity of the image. Most cameras will also have an in-built temperature control mechanism that will allow them to function in extremes of heat and cold. The camera will also work in the darkness with the cop car spot light switched off and is designed to be panned and titled at different angles. Private vehicles are in many states allowed to use a cop car spot light off-road, but not on streets full of vehicles. On normal streets, flashing cop lights may be construed as impersonating a policeman and may be punishable with a fine.
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Are LED Lights Cheap Lights?
It may be a bit of an anomaly to say that something that is pricey is cheap. But that is an apt definition for LED lights. On an average, an LED bulb is five times as costly as an incandescent bulb. As such, if you go only by cost, LED lights cannot be called cheap lights. But when you do your homework well, you will find that they are indeed cheap lights. The brightness of a light is decided by its lumens. In the place of a 100 watts incandescent bulb which is required for an output of 1600 lumens, a 20 watts LED bulb is enough to produce an equivalent amount of light. This makes the energy consumption of LED bulbs very low. In the long run this low power consumption will translate into making them cheap lights.
Another attractive attribute of LED lights is its long life. Whether used on a vehicle or in a home, an LED bulb is a lifetime investment. In fact when used on a vehicle, it will outlast the vehicle, and it is the responsibility of the vehicle owner to see that the light is shifted to the new vehicle, instead of being allowed to go to the junkyard together with its host. LED lights fall under the category of cheap lights because of its long life since halogen bulbs would have to be replaced ten times or more during an equivalent period. Since incandescent lights have to be replaced frequently, it creates plenty of non-biodegradable waste. LED lights create much less waste in comparison. This too makes LED lights a welcome choice though it does not make them cheap lights because of it.
Because of their low energy consumption, LED lights emit less heat and keep the surroundings cool. The bulb also remains cool because the heat is dissipated through a heat sink at its base. To get the maximum benefit out of LED lights, and to ensure their long life, LED lights have to be used in places where the heat from the heat sink can be dissipated the right way. For decoration purposes, especially for outdoor lighting, LED lights will definitely be cheap lights since there will be significant difference in energy consumption.
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