LED city street lights: A glowing danger



As night falls on the tristate, a new, brighter and whiter light is beginning to shine. Light Emitting Diodes, or L.E.D.’s, are at the center of these new street lights. They produce more light at approximately half the cost of those old, familiar high-pressure sodium lights, which produce an amber to yellow hued light.

The lower-cost, bright-light combination is why L.E.D.’s are now popping up on our roads and streets, highways and byways, even in a tunnel many of us drive through.

According to the Ohio Department of Transportation (ODOT), approximately 1,100 L.E.D.’s are included in the 46 thousand streetlights on Ohio’s roads and highways.

Nguồn: https://freecode.com.vn/


  1. It's not long ago they were talking about light pollution and considering turning off street lights . When I was a kid moths were attracted to street lights , where did they go ? Same place we're going !

  2. total BS, its not the lights, the real reasons why we have all these health issues is from poor living conditions, low paying jobs that over work most folks, overpriced cost of living, bad food, and the rest of the stress caused by this so called modern barbaric society.

  3. These light cause breast overran and prostate cancer test in Spain in 3 towns and messes with Ur eye sight and brain waves

  4. They lights are dangerous .they must be harming all the we night creatchers .And Humans with Hi RP .and retina eye 👁 diseases like pig mitosis .the eye problems

  5. We got LEDs recently and I can see the refresh rate or "flickering" if I look closely. It's so, so annoying to look at… the old 50s poles are NOT suited to the new bulbs and thus make them flicker.

  6. Changing the "K" factor won't change the brightness, the brightness itself must be changed by decreasing the number of component LEDs in each fixture or diffusers or refractors should be installed to spread the emitting light as each component LED is a spot light.

  7. LED Suppresses Melatonin? How convenient, since humans produce melatonin through the pineal gland which is crucial for human connection with higher consiousness in the dark. This is a silent war on consioussness and human spirituality, not to mention one of the weapons being used for human depopulation, surveillance and control. https://youtu.be/HW9UHaCERL8

  8. It is true that exposure to higher kelvin color temperature (4000K and higher), but if you are driving, you are not continuously exposed to it as you are driving down a street or roadway. The fix for this is installing LED roadway fixtures in the warmer color temperature range (2700-3000K), which many municipalities are doing. As far as glare is concerned, LED technology and optics are constantly improving, so that should not be an issue in the future. Most of these concerns are highly exaggerated.

  9. The LED street light should using of color temperature light from 2.000K – 3.000K "WARM-WHITE" or yellow-amber LED light for reduced of the blue ray effect

  10. AMA is full of shit. These are the same people who refuse to investigate 5G. I say these lights are just fine…

  11. So people are complaining about lights doing their job and apparently they think LEDs can cause obesity. OK

  12. This is all part of the corrupt United Nation Depopulation and Genocide Agenda--LED and Blue LED Lights blinding people World Wide—LED and Blue LED Lights on vehicles causing massive accidents World Wide—Blue Florescent—LED and Blue LED Lights—directed energy weapons–3G/4G cell phones—5G–AI-IoT—EMF Radiation–smart meters–smart phones–UN Smart Cities etc.–

  13. Those LED headlights are very dangerous I am blinded when they are on the car coming towards me. The LED street lamps hurt my eyes and the glare. Take them out of cars and streetlights.

  14. There is a simple answer to this. Install amber LED lights. Fully agree with the criticism. The blue/white bulbs create terrible glare, dazzle the eye in rain, or simply worsen the clarity of a dirty windshield, and they flatten scenery – hindering the perception of street edges, curbs, and obstacles.

  15. LED streetlights have NOTHING to do with saving energy costs.  That's just a sales pitch to inform the dumb masses due to them believing anything.  ALL of the LED streetlights have transmitters inside them that'll be used to track people.  WAKE UP PEOPLE!!!

  16. Yes the energy savings is dramatic. Three additional things need to be considered while making the transition to LED lighting to avoid negatively impacting the nearby homeowners, birds, or wildlife sleeping patterns.
    1. No higher than 18w fixtures so illumination is consistent with prior HPS fixtures.
    2. Color needs to be warm "soft white" 2700k to promote normal sleep instead of higher blue content or "daylight" LED that is well-proven to interfere with biological sleep patterns.
    3. New fixtures should be fitted with shielding so the dazzling LED bulb shines only on the common streets and sidewalk, not driver's eyes, private homes, or bedroom windows.

  17. Sad in Indonesia They replace orange sodium light to led cool white,i hate when i drive car or ride motorcycle with coolwhite light make unconfort my eye in rain,the 2300-3000k temp is good for rain/fog condition also i feel cozy in night they should put back to sodium light or using led with lower temperature

  18. I use night driving glasses that remove most of the blue color. The loss of the blue does make things slightly darker, but most of the radiative glare is eliminated, which more than makes up for that. Plus my eyes aren't strained. People argue the use of intensely blue LEDs is good because the moon shines at a higher color temp. Sure, and the moon is only about 1/10th as bright as the direct illumination from street lights, so there's little to no glare. The downward facing cutoff on the LED lenses do help, but the higher K LEDs still glare far worse than HPS lights, and LPS lights have very little glare at all, because there's basically no blue.

    Likewise, LEDs don't really glare much in the lower colour temps. While the AMA recommends 3000k as the max, 3000k still sometimes produces nasty glare. 2700k seems to be just below the low point of where glare starts to become a significant issue. If only 1800k (amber) to 2700k LEDs were standard. Not the retina burning 4000k to 5000k LEDs. Those belong in big stores, sports stadiums and for daytime indoor lighting.

  19. LED street lights are a tragic mistake. A blight on the countryside and a curse on the urban environments. God help the wildlife. All the research is available but the well-being of human beings and wildlife is ignored. it is civic vandalism and must be stopped.

  20. This issue is overly exaggerated. If the blue light emitted from LEDs is going to affect sleep in humans, you would have to spend a long period of time under them. On roadways, you are only under them momentarily, which has little to no affect on people. You don’t have 10 miles of continuously lit roadways anywhere. Anyways, this is becoming a moot point as jurisdictions are adopting the use of 3000K LEDs in roadway fixtures. To change out an existing 4000 or 5000K fixture to a lower color temperature (like 3000 or 2700K) you would have to replace the complete LED diode array in each fixture. It is probably more cost effective to replace the entire fixture. It’s pretty bad the AMA is giving LEDs a bad rap. As long as you specify the warmer color temperature LED modules in any outdoor light fixture, there is no problem. Many jurisdictions such as in Florida, they require all LED outdoor lighting fixtures be specified with Amber LEDs so as not to endanger sea turtles.

    It is better to use warm color temp LEDs in homes because you spend many hours under them at night. Most people prefer the 2700 or 3000K LED bulbs and hardwired fixtures because they are more like incandescent lighting. But there are some countries, like Asia for instance, where they prefer a cooler color temp of light in their homes. I wonder if any studies have been done in these countries?

  21. We all know that LED lights can be any colour. White street lamps are from the 1950's! I was a child of the 70's & miss those beautiful orange ones but they were replaced with the orangy pink ones. In the UK there are still alot of them about especially on motorways/freeways. They still give the best light, hands down. Oh, are they bad for environment? That's A REAL SHAME! Is planning to build a third runway at Heathrow Airport bad too? Apparently not. We are being run by a pack of wolves in human clothing. Now let me look up what David Icke has to say on this!

  22. they should just go back to using sodium streetlight head fixtures led is not a good idea to be used as streetlighting and led streetlight head fixtures would flicker on and off because the new technology isn't good and it can damage people's eye sight and it can cause cataracts and future blindness.

  23. High Pressure Sodium lights will still always be the most popular light used for street lighting around the world, LED won't top that anytime soon or ever. Just in places in America like Detroit, where they'll do anything to save money, immediately switching out these HPS lights. Screw going green, and anyone who supports it. I even know mercury vapor lamps that have lasted way longer than the projected estimate of the LED's, which is 100,000 hours. These haven't been proven yet, because LED's haven't been around that long in street lighting to start going around and assuming this. It disgraces me how they put these new ugly LED's in my city, now the nice, orange hue has gone for this boring, white light I see all the time, everywhere, Making the place look like a prison yard. May HPS and Mercury vapor always be remembered for how great they are. Thank you for ruining night time, LEDs.

  24. Check out fb.me/badbluelight for research on the full impact of LED street lights on our health and the environment.

  25. I hate these new implementations, many cities in Norway use these shitty LED lights, when the snow comes they're intense, mostly poorly shielded, the intense white light is reflected in the snow making driving awful, really painful for your eyes, especially when you transition over to a darker region it's hard for the eyes to adapt making driving dangerous, also we don't see the freaking night sky anymore, our night sky is now white…

  26. This is based on theory. Look at the data, are accident rates high in areas where LEDs have replaced HPS lamps? If the answer is yes, then we need to rethink how we use these lamps, perhaps change the way they are used.
    LED's are so much more energy efficient, I don't think we should not use them, but if they are causing problems, we need to fix that.


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