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LED Lighting

Multimedia
  1. LED Lighting Generated By a Soccer Ball (DogoNews.com)
      "Though 25% of the world's population may not have access to electricity, they all have access to a source of energy that is currently being wasted - Kinetic energy released by their bodies when they exert themselves. Now two Harvard alums have figured out how to capture this energy and convert it into electricity - The only equipment needed? A Soccket soccer ball and the desire to have some fun!" 08-12

  2. Los Angeles Adopts LED Lighting (CNN News)
      Provides some details on the effort of Los Angeles to reduce utilities costs by switching over to LED lighting. Initial results suggest a 55% drop in lighting costs per year, representing millions of dollars in savings.

Papers
  1. Comparison of LED and Fluorescent Lighting (CCrane.com)
      "If every U.S. household replaced just one standard 60 watt bulb with a CC Vivid LED bulb, we could save 24,184,400,000 watts or 24,184.4 mega (million) watts per day." 11-07

  2. Fluorescent Tube Lighting Replacement (AdvancedMart.com)
      LED bulbs are mercury-free, unlike fluorescent lights, and last up to 50,000 hours compared to 1,000 hours for an incandescent bulb. Bulbs cost around $25 each. Visitors sometimes misspell as flourescent, flourecent, or flouresent. 12-02

  3. LED Lighting (CCrane.com)
      "LED light bulbs give off directional light, so the light goes where you aim it. LED bulbs are closer to the color of daylight which new studies suggest is good for staying alert. Our LED light bulbs can be used to replace your standard fluorescent or halogen light bulbs. The bright, white LED light produced by our LED Light Bulbs works especially well for task lighting and reading light. LEDs not only produce light more efficiently, they also have a tiny mirror that reflects light in one direction. A more directed light means less wasted light." 11-07

  4. LED Lighting Cost (ColorKinetics.com)
      "Matching the cost of conventional lighting is another critical element for replacement to occur. The true measure of cost goes beyond just the initial cost of the lighting system and incorporates lifetime and operational costs as well. For example, an incandescent source may only have an initial cost of fifty cents, yet its energy consumption will cost more than ten times that over its relatively short life, when a new source must be purchased and the cycle starts again. The metric that accounts for all of these factors is called the Cost of Light. This is the measure that sophisticated customers, such as those managing large buildings, use to compare the true cost of illumination. Intelligent LED lighting systems are intersecting the Cost of Light of incandescent and halogen sources and are rapidly approaching the economic cross over point for fluorescent sources. A white paper is available for more detailed information." 02-08

  5. UV Dangers from LED Lighting: Not (eHow.com)
      "The most common misconception regarding UV LED lights is that they produce ultraviolet radiation that can be harmful to the skin, eyes, or other bodily organs. The truth is the radiation emitted is called "near UV," and it occurs below the threshold of harm posed by the true UV wavelength. UV LED lights actually give off less radiation than other types of bulbs." 12-02

Purchase Resources
  1. Electricity - Fluorescent Tube Lighting Replacement (AdvancedMart.com)
      LED bulbs are mercury-free, unlike fluorescent lights, and last up to 50,000 hours compared to 1,000 hours for an incandescent bulb. Bulbs cost around $25 each. Visitors sometimes misspell as flourescent, flourecent, or flouresent. 12-02

  2. LED Lamp (Engadget.com)
      "The Z-Bar won I.D. Magazine's "best of category" award which is pretty sweet considering the category wasn't just lamps, it was furniture. The Z-Bar's 66, long-livin' LEDs pump 100 lumens in pretty much any direction you want thanks to that 47-inch, finger-thin neck loaded with hinges and rotational joints. Sure, 100 lumens doesn't seem like much when compared to an incandescent's 500800 lumens. The Z-Bar's trick is to focus the light in a 50-degree viewing angle instead of the 360-degrees of waste emitted by standard light bulbs. The lamp can stand alone on its weighted base or clamped to a table edge -- your choice after forking over $130." This would be $1.30 per lumen. Awesome Library does not endorse this product but provides it as an example. A quote from another page of this site: "I don't think it would make a very good reading lamp, but it's great for desktop paperwork." 04-08

  3. LED Lamp (SundanceSolar.com)
      Provides 200 lumens of focused spotlight for $45 or $.23 per lumen. It uses 3.8 watts of energy. Also provides 12v versions. Awesome Library does not endorse this product but provides it as an example. 11-08

   
   


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