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LED Street Lamp Improvement

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#1 tcifani

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Posted 09 August 2024 - 10:51 AM

Many months ago, I called my city to request a lamp shield or wattage reduction on a very bright and obtrusive LED street lamp across the street from my house. After many phone calls to the city and then the power company, this finally happened, and the difference is amazing. The light was so bright, I could easily see color in grass and foliage in my front yard and read small type on printed materials like star maps. My main argument to the city and power company was not to practice astronomy but lack of sleep because the light spilled into my bedroom. They agreed with me on this and did not try to argue.

 

Now, my front yard which is where I often set up a telescope, is substantially darker and more importantly the blinding spot light effect is gone which greatly helps my ability to adapt to the darkness. The pool of light now isolated mostly to the street is also considerably dimmer, so they may have installed a shield and a lower wattage lamp. I'm not completely sure about the lamp itself, but they did install this black plastic device over the lamp housing which blocks most of the stray light.

 

Once I have a good clear night, I'll take some photos to show the difference with this modified lamp. 

 

It took a long time for this to happen, but persistence has paid off.

 

Clear skies!

 

Tony

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#2 auroraTDunn

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Posted 09 August 2024 - 11:29 AM

BRAVO and congrats!

Now lets hope entire cities (coughDenvercough) would take note of this and take action!


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#3 bunyon

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Posted 09 August 2024 - 03:05 PM

I have the exact same story. The shield doesn't look like much, but it does a great job.


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#4 tcifani

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Posted 10 August 2024 - 08:54 PM

Here's a photographic comparison from recent years from my front yard. The first image from 2020 with sodium vapor lamp. Center image with the new bright LED installed 2023. Image at right modified or shielded LED lamp 2024.

 

All images photographed with the same camera and lens (Canon 5D MK4 w/ 24-70 F/2.8 @ 24mm) and exact same exposure settings on manual mode: F/2.8, 8 sec. ISO 160. (camera on tripod). 

 

I didn't nail the exact framing of each shot from one year to the next, but notice difference in brightness of lamp as well as surrounding trees and foliage. Also interesting to note differences in sky glow in shots.

 

Even though the new shielded street lamp is still obvious, brightness has been greatly reduced. And while my bright urban skies are still approximately 18.5 mpsas, I am now able to enjoy visual observation again, at least brighter showpiece objects.

 

If you have a problem in your neighborhood with streetlights like this, contact your city and/or your power company. They might be willing to install a shield.

 

 

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#5 DSOGabe

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Posted 12 August 2024 - 12:46 PM

Congratulations on the victory.

Have read on previous posts that bringing astronomy into the argument usually ends in failure. The focus needs to be on sleep being disturbed by the lighting for the municipality or power company to actually do something. 


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#6 kevin6876

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Posted 14 August 2024 - 10:40 PM

Little victories are sweet.  Congrats on the shield install!


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