Comments on: Stamford Connecticut Switches to LED Streetlights

By: Bob_Wallace

Bob_Wallace — Thu, 18 Sep 2014 00:44:00 +0000

Mercury vapor lighting is broken. So is high pressure sodium.

Anything that uses more electricity than necessary is broken.

By: BMS

BMS — Wed, 17 Sep 2014 23:18:00 +0000

Bring back mercury vapor lighting, those lamps have been known to still light after 15 years of nightly use and some fixtures I’ve seen in service for 35 plus years and still going, led lighting is not cut out to what everyone thinks, the technology is too new and why try and fix what isn’t broken. stick with High pressure sodium or metal halide fixtures.

By: Cost Analysis Tool Helps Cities Switch to LED Lighting - CleanTechnica

Cost Analysis Tool Helps Cities Switch to LED Lighting - CleanTechnica — Thu, 15 Mar 2012 11:03:16 +0000

[…] already reported on several cities that successfully made the switch to energy efficient street lights. Hopefully the trend […]

By: led grow lights

led grow lights — Wed, 01 Feb 2012 12:49:00 +0000

LED street lights would be cheaper and better.

By: atif khair

atif khair — Fri, 11 Nov 2011 11:03:00 +0000

i think with out LED lights all streets going dark that means LED lights play important part in our life’s.
LED Sign

By: Anonymous

Anonymous — Tue, 08 Nov 2011 01:50:00 +0000

20,000-30,000 hours for sodium vapor vs. 60,000 for LEDs. Twice as many lumins per watt for LEDs.

I did not find comparative cost data. I did find one statement from a year ago that LEDs were “slightly more expensive” than sodium vapor lights.
Don’t forget to add in the labor cost for changing burned out bulbs. That can be fairly high when you have to send out a couple of workers in a hoist truck. Sodium vapors would need to be replaced 2x – 3x as often.

Macy’s Department stores calculated that they could save $1 billion over ten years ($100 million per year) by switching from halogen to LEDs in their 800 or so stores. A lot of the savings comes from less bulb changing.

By: Seamus Dubh

Seamus Dubh — Tue, 08 Nov 2011 01:26:00 +0000

Now while that ten year service life and 1/2 power usage is a good thing. But I need two more sets of numbers to understand the benefits of this better.
1. How long did the Sodium Vapor bulbs last?
2. What do the new LED bulbs cost compared to the Sodium Vapor ones?

By: QuadTech

QuadTech — Mon, 07 Nov 2011 20:04:00 +0000

A 10 year service life?! That most certainly pays for itself. The hardest part with any initiative like this is drumming up funds at the beginning. However, even if Stamford can only do so many lights at a time, the differences will be very noticeable with each round of changes.