THE WORLD TODAY AND LED STREET LIGHTING
This decade marks a real revolution in the world of led streetlights. Indeed, in a few years, compact fluorescent lamps is used streetlights have replaced traditional incandescent lamps and it is likely that LED lighting is also ready to prevail in all homes. Indeed, the many defects of compact fluorescent bulbs cause many consumers to push themselves to another type of lighting. The choice of LED lighting is essential for most of them. Why? What are the advantages of LED lighting? Where can we put it at home? Here we tell you everything you need to know about the lighting of the future.
LET’S MAKE LED STREETLIGHT TODAY’S TOPIC
An LED street light (also referred to as LED road lighting) is an integrated light-emitting diode (LED) light fixture that is used for street lighting.
An LED street light is an integrated light that uses light emitting diodes (LED) as its light source. These are considered integrated lights because, in most cases, the luminaire and the fixture are not separate parts (except LED Gine-based luminaires). New in manufacturing, the LED light cluster is sealed on a panel and then assembled to the LED panel with a heat sink to become an integrated lighting fixture.
Different designs have been created that incorporate various types of LEDs into a light fixture. The current trend is to use high power 1 watt LEDs. However, some companies use low power LEDs in their products, including several low power LEDs packed together to perform the same purpose as a single high power LED. The shape of the LED Street light depends on several factors, including LED configuration, the heat sink used with the LEDs and aesthetic design preference.
Heat sinks for LED street lights are similar in design to heat sinks used to cool other electronics such as computers. Heat sinks tend to have as many grooves as possible to facilitate the flow of hot air away from the LEDs. The area of heat exchange directly affects the lifespan of the LED Street light.
The lifespan of an LED street light is determined by its light output compared to its original design specification. Once its brightness decreases by 30 percent, an LED street light is considered to be at the end of its life.
Most LED street lights have a lens on the LED panel, which is designed to cast its light in a rectangular pattern, an advantage compared to traditional streetlights, which typically have a reflector on the backside of a high-pressure sodium lamp. In this case, much of the luminance of the light is lost and produces light pollution in the air and surrounding environment. Such streetlights can also cause glare for drivers and pedestrians.
A drawback of LED focus panels is that most light is directed to the road, and less light to the footpaths and other areas. This can be addressed by the use of specialized lens design and adjustable mounting spigots.
WHY YOU SHOULD SWITCH TO LED STREET LIGHTS
1. Lower Energy consumption
Most of the LED lighting retrofits are said to dramatically reduce the energy used. However, in the facts, studies have shown that lower energy consumption is tied and limited to reduced levels of illumination.
2. Predictable and long lifetime
The lifespan of the LED street light fixture is between 5 to 10 years. This lifespan is 2 to 4 times the lifespan of the current prevalent HPS. The LED products do not fail like the other light sources or barring catastrophic failure of the other electronic or mechanical components of the LED fixtures. The lifetime of a product is typically set by decreasing luminous output by 30 percent. However, the functional lifespan of any LED fixture is usually limited by the weakest link. The associated drive electronics are projected to last for about 50,000 hours. It is very crucial to understand that there is no LED streetlight product that has been in service for this long so that it can be used to confirm the projections. If this will be realized, then there will be less frequent need to replace or service the LEDs and this will mean lower maintenance cost.
3. LEDs color rendering is more accurate
The color-rendering index of the LEDs is the ability of the light source to reproduce colors of the objects correctly in comparison with an ideal light source. An improved color-rendering index makes it simpler for drivers to easily recognize the objects.
4. You can quickly turn on and off
Unlike the high intensity discharge lamps (HID) and fluorescent lamps such as metal halide, mercury vapor as well as sodium vapor lamps, it takes time to heat up once the switched is turned on. The LEDs usually come with full brightness instantly.
5. Instant restart
Unlike the metal halide, sodium vapor and mercury vapor lamps, the LEDs do not have any problem when restarting immediately that maybe due to inadvertent turn off or brief power failure.
6. RoHS compliance
The LEDs do not contain any lead or mercury and thus they do not release any poisonous gasses once they are damaged.
7. They are less attractive to the nocturnal insects
Nocturnal insects are usually attracted to ultraviolet light that is emitted from the many conventional light sources.
8. They are optically effective lighting equipment
Some types of the streetlights normally use reflectors in order to capture the light emitted from the lamp. Reflectors do absorb some light even under the best conditions. In addition, the fluorescent lamps having phosphor-coated bulbs do absorb some light that is reflected back by the reflector. Refractor is a glass cover and it helps to project the light down on the street in a good pattern although some light goes to waste as they are directed up to the sky. The LED lamp panels can send light in any desired direction without necessarily using a reflector.
9. Reduced glare
Directing the emitted light downward reduced the amount of light that is directed into driver’s eyes. Another advantage is higher light output even if temperature is low.
- LED lights reach full brightness instantly – They do not require time to warm up, which makes them a flexible light source.
- Far more environmentally friendly – They do not contain lead or mercury and do no mite any poisonous gases. They also give off less CO2 emissions.
- Less glare – As they are directed at the road surface, they do not badly affect drivers’ vision.
- Higher light output – LED lights perform better at lower temperatures, which is beneficial over the winter months.
- Can withstand most weather conditions – They are dustproof, waterproof and work in all temperatures.
- Reduced light pollution – LED Street lights work in a way that means this does not happen.
Today, there are really no disadvantages to using LED street lights. They are generally 70% more energy efficient. They now provide a much lower light pollution and a less invasive lighting color than before. They are now much more cost effective, easy to install, and virtually zero maintenance for 10 or more years in most cases
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