6 Jan
2011
Street Lights

Lower costs and improved performance with LED street lights
Strategies to improve street lighting and reduce costs
Streetlights are a major expense head for all utilities. Cost of installing poles, light fixtures, replacement bulbs, and maintenance and replacement charges can at times be more than what a utility can handle. Coupled with the high costs are the demand of excellent customer service and ensuring public safety. Utilities also carry the responsibility of reducing their carbon footprint and adopting sustainable products and practices in the long-term interest of their citizens. Not surprisingly, utilities are coming up with innovative solutions to tackle these challenges.
Smart municipal councils and utility companies show the way
What is common between Menasha in Wisconsin and Surrey in UK? Both are harnessing LED street lights to improve street lighting quality and generate savings for their respective municipalities. Estimates suggest that Menasha will save $ 60,000 annually resulting in a payback time of less than three years. Los Angeles and Ann arbor are also on track to harness the benefits of LED lighting.
Switching off and dimming of Street lights
Some municipalities like Kennebunk, (Maine) have taken a different route - that of switching off unneeded streetlights. Besides the headache of identifying which lights to switch off, when to switch them off, dealing with irate citizens and accusations of compromising on public safety, their annual savings are estimated at a modest $20,000. Gloucestershire County in UK also uses the dimming and switching off technique with better financial returns – annual savings of 200,000 pounds. Many experts feel that investing in LED street lights would have been a more prudent choice.
Use of intelligent control systems
When officials in Vietnam needed to address the street light issue, they decided to invest in a central control systems and replacing older energy inefficient bulbs. Today Ho Chi Minh City expects to save 229.6 million kWh of electricity that would be valued at 22.96 million dollars at an average rate of $ 0.1 per kilowatt! These systems work well with LED lighting technology.
Using social networking tools to improve service quality
Some utilities are harnessing the power of twitter to reduce outages. Customers of the Kissimmee Utility Authority can send a twitter message to the utility with details of malfunctioning streetlights. San Francisco residents have access to a similar facility.
The integrated solution
When Phoenix (Arizona) decided to strive to become the greenest city in United States LED street lights were one of their first choices. Not only do they use 50 % or lesser energy their low temperature operation, light weight and hassle free long working life of 50,00 hours or more makes them the ideal choice for street lights.
Add to this the ability of dynamically controlling street illumination with intelligent systems (as San Jose has demonstrated) and these technological marvels leave a few prayers unanswered. These full cut off lights are kinder to the dark skies that have become a rarity in today's urban landscape. Even those who are not too worried about the environment love the fact that these lights attract far fewer insects. These lights can also serve as a communication tool. When needed, intelligent control systems can direct these lights to go into the flashing mode. There is little surprise that these future ready lights are emerging as the number one streetlight choice.
When it gets dark, why do street lights go red then orange/amber?
The street lights turn on when it's dark and go red. Then, after a couple of minutes they turn orange/amber. Does anyone know why?
The bulbs are usually H I D high intensity discharge bulbs,,Sodium,,they need a massive power supply to get them going only 240V but it has to be almost pumped in ,,as the Sodium gas warms the glow of the bulb changes colour ,,,,
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![]() Kurt Adler 10-Light Antique Colonial Street Lamp Light Set List Price: Sale Price: $17.99 You save: $7.57 (30%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionThis 10/light antique colonial street lamp light set with amber lamps and wreaths, 30-inch lead wire, 12-inch spacing, 4 spare bulbs and 2 spare fuses. This light set is for indoor use only. Features
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![]() Department 56 Village Double Street Lamps Set of 4 List Price: Sale Price: $12.49 You save: $0.51 (4%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionSet of 4. Battery operated (not included). Features
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![]() Kurt Adler 10-Light Sesame Street Faces Light Set List Price: Sale Price: $19.43 You save: $5.07 (21%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionThis novelty light set features 10 lights with 5 assorted Sesame Street character faces. Features
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![]() Department 56 Fifty-Six Street Lghts Set of 2 List Price: Sale Price: $14.99 You save: $15.00 (50%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionEach of the 2 ornate street lamps in this set bear the "56" logo along with three LED wired globes. This set of 2 uses batteries to power the lights and can also be powered using the AC/DC power adapter (56.55026), sold separately. Designed and manufactured exclusively for Department 56. Features
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