If you’re considering an LED street light for your city or neighborhood, you’ve likely heard plenty of good things about this technology. However, there are some drawbacks to this type of lighting as well. In this article, we’ll cover some of these concerns, as well as discuss the Luminous efficacy and lifespan of LED street lights. Also, we’ll discuss how much these lights cost. This is an important consideration before making the decision to purchase LED street lights for your community.
Problems with LED street lights
Currently, LED street lights are becoming more popular, but they are not without their problems. There are a few problems with LED street lights, but they are not the most severe. If you are planning to install LED street lights in your city, you should understand the problems and benefits before you buy them. Let’s examine some of the main problems with LED street lights. These issues could be avoided by investing in high-quality LEDs.
Some of the major issues with LED street lights include glare and pupillary constriction. This is because LEDs emit blue light, which affects the human eye. The blue light emitted by LED street lights suppresses the production of melatonin in the human body. In addition to the glaring problem, bright LED street lights make it difficult to sleep. To mitigate these problems, the American Medical Association recommends using proper covers to protect your eyes and dimming LED street lights during off-peak hours.
Luminous efficacy of LED street lights
One major advantage of LED lights is that they can be adjusted to provide the level of illumination required by the environment. Furthermore, LED lights provide a high degree of control over light direction, preventing problems with glare, light pollution, and uplight. The luminous efficacy of LEDs under mesopic vision is also significantly higher than those of other forms of lighting. So, it’s clear to see why LED street lights are the future of lighting.
One major difference between LED and HPS street lights is their heat tolerance. LED street lights have a much higher heat tolerance than HPS and are more suitable for tropical and desert climates. However, while LED street lights offer more efficiency at lower temperatures, they do not always have the same lifetime as HPS street lights. If your project requires LED lights for roadway lighting, be sure to check the luminous efficacy of these lights before committing to a purchase.
Lifespan of LED street lights
The lifespan of LED street lights depends on a variety of factors, including the design of their heat sinks, luminous efficiency, and power. LED street lights may be composed of a small number of high-power LEDs or a large number of low-power LEDs. Their shape depends on their configuration, as well as their heat sink design. Heat sinks for LED street lights are similar to those used in other electronics. They tend to have a variety of grooves to facilitate the flow of hot air away from the LEDs. Hence, the heat sink size will also determine the LEDs’ lifespan.
The overall investment for two million LED streetlights is 4.89 billion yuan. With a ten-year lifespan, this investment will save the government and local finance 7.4 billion yuan. During the life of a LED streetlight, the lights will consume about half the amount of electricity and produce five times as much light. However, LEDs are not the cheapest option. In addition, they may have a larger impact on the environment than other streetlights.
Cost of LED street lights
While the estimated cost of LED street lights is about Rs470 crore, this figure does not include the operation and maintenance costs. This could be a scam of over Rs100 crore. To determine the actual cost of LED street lights, we should check the market price. A single LED has a low power capacity, and to obtain a high power output, multiple parallel connections are required. Similarly, the color rendering index of LED is not yet high, and colors under its illumination are not as accurate as incandescent lights. To calculate the color of an object under the illumination of an LED, we need to analyse the spectral distribution of the object, which is a technical issue.
The American Medical Association recommends reducing blue light emissions and shielding roadways from glare. LED street lights are also low in CCT, meaning they produce less blue light. In fact, converting all light fixtures in the United States to LEDs would reduce the amount of energy used for lighting the nation by half. And since they do not require a warm-up time, they do not produce harmful ultraviolet light, which attracts insects.