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Keyword: leds

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  • Vanity: ? for Electricians/Lighting Experts

    01/06/2019 4:01:30 PM PST · by Jamestown1630 · 89 replies
    Forgive me if this is a very ignorant question, but I don’t know very much about lamp wiring, LED bulbs, etc., and am hoping someone can give me advice. I recently purchased some of these lamps from IKEA: https://www.ikea.com/us/en/catalog/products/00323887/They're very nice for my purpose, but I can’t stand the unshaded LED bulb. Ikea’s lamps seem to be all LED, and they sell the bulbs for them. The bulb we bought is an E12, 200 Lumen, because that’s what the display lamp had. But they have lots of different bulbs with those same specifics, just with different names. The lamp says...
  • How Many Liberals Does it Take to Screw In a Hazardous CFL Lightbulb?

    03/08/2011 5:28:49 PM PST · by seamus · 18 replies
    Somewhat Reasonable ^ | March 7, 2011 | Jim Lakely
    The answer to the above headline is "a whole Congress" (and a senseless president "W").  As Stephen F. Heyward noted the other day, the ban of the incandescent light bulb — thanks to the federal mandate of compact fluorescent light (CFL) for all Americans starting in 2012 — will be the stupidest "energy conservation" law since Jimmy Carter spearheaded the national 55 mph speed limit. I'd rather wear a sweater. We can only hope this scheme will be much less short-lived. Writes Heyward: We’re going to sock it to industry with new air-quality regulations to reduce airborne mercury, but we’re going to subject...
  • Massive 500-LED Extreme Flashlight ( Homemade with controls)

    09/07/2010 12:00:42 PM PDT · by Ernest_at_the_Beach · 54 replies
    hacknmod.com ^ | March 2010
    The first question some may ask is “Why?”  Those of us who are LED addicts say “Why the hell not?”  This guy literally took 500 bright white LEDs and created his own giant 50W flashlight.  While it may have been just ever so slightly overkill, it’s still an impressive build.  Can you imagine soldering all of those 500 LEDs?! Don’t Miss: DIY Super-Powered Flashlight Beam****************************************************************************Youtube Video of the Construction and Demostration at the website.... *********************************************************************************** As you can tell in the video above, it has an absurd amount of controls for various brightness settings.  Heck, it could even be a...
  • Stoplights' Unusual, Potentially Deadly Winter Problem

    01/09/2010 7:55:59 AM PST · by ricks_place · 26 replies · 1,141+ views
    ABC ^ | Jan. 8, 2010 | ELISABETH LEAMY and VANESSA WEBER
    LED Lights Don't Melt Snow on Traffic Lights, Hiding Signals From DriversA huge swath of the country is getting snow and it's raised an unusual and potentially dangerous problem for motorists. Communities across the country are converting to LED traffic lights, but these lights don't emit heat, so snow doesn't melt like it would with a regular incandescent bulb. In some cases, Drivers then can't see the signals. During a snow storm last year, Lisa Richter of Oswego, Ill., had a green light and was turning left. But police say a driver in the oncoming lane blew through his red...
  • Scientists Devise Brighter LEDs via Nano-imprint Lithography

    01/01/2008 5:08:49 PM PST · by PeaceBeWithYou · 39 replies · 260+ views
    Daily Tech ^ | January 1, 2008 | Wolfgang Hansson
    Brighter LEDs pave the way for a new type of home interior lighting The LED, or Light Emitting Diode, has been around since the late 60’s but only over the last few years have LEDs made headway into commercial mainstream use. Some new vehicles now use LED’s in headlights and taillights. The benefits of this are brighter light and much improved life span for the bulbs. Some stop lights also use LEDs to combat against the hazard of a stop light burning out. Of more interest to technophiles is the advent of LEDs for use as backlighting in our notebook...
  • The future is bright for LEDs

    12/06/2007 5:00:32 PM PST · by decimon · 73 replies · 130+ views
    BBC ^ | December 6, 2007 | Anna Lacey
    They wink at us every day from computer screens and stereos. But the humble LED is heading for a brighter future. New generation Light Emitting Diodes will purify water, make lights that mimic the colour of sunshine, and keep private data immune from hackers. Dr Rachel Oliver, an LED researcher from the University of Cambridge, thinks that they could easily succeed tungsten bulbs as the main way to light our homes. "LEDs have enormous benefits over standard light bulbs because they're a great deal more efficient, come in a range of different colours and have a very long lifetime. They...
  • Ann Arbor, Mich., Putting LEDs in All Streetlights

    10/18/2007 10:01:07 AM PDT · by decimon · 71 replies · 129+ views
    Associated Press ^ | October 18, 2007 | Unknown
    DETROIT — How many Ann Arbor city workers does it take to screw in a light bulb? Soon, none. Instead, they will be installing light-emitting diodes, or LEDs, to replace about 1,400 street lights.< >...LED technology, which uses less than half the energy of traditional bulbs and could save the community $100,000 a year.< >..."LEDs pay for themselves in four years," said Mayor John Hieftje...< >
  • EcoLEDs Announces Brightest Commercial LED Light Bulb Yet

    05/23/2007 10:58:33 AM PDT · by Ben Mugged · 107 replies · 2,123+ views
    Energy Daily ^ | May 23, 2007 | Staff Writers
    Eco-friendly lighting company EcoLEDs.com has launched the brightest LED light bulb ever made available to consumers in the United States. Using just 10 watts and a single LED component made in the USA, the LED light uses just 1/10th the electricity of an incandescent light bulb and reduces CO2 emissions by 9,070 pounds over its life. The EcoLEDs 10-watt LED light is available now. Incandescent light bulbs are now being globally recognized as extremely inefficient and outdated. Australia has already banned the energy-hungry light bulbs, and California is considering a state-wide ban. In time, all modern nations will ban incandescent...
  • LEDs emerge to fight fluorescents

    05/11/2007 7:07:03 AM PDT · by nypokerface · 45 replies · 1,343+ views
    AP ^ | 05/10/07 | PETER SVENSSON
    NEW YORK - The light bulb, the symbol of bright ideas, doesn't look like such a great idea anymore, as lawmakers in the U.S. and abroad are talking about banning the century-old technology because of its contribution to global warming. But what comes next? Compact fluorescent bulbs are the only real alternative right now, but "bulbs" that use light-emitting diodes, or LEDs, are quickly emerging as a challenger. LEDs, which are small chips usually encased in a glass dome the size of a matchstick head, have been in use in electronics for decades to indicate, for example, whether a VCR...
  • High efficiency flat light source could be the end for the light bulb

    04/19/2006 10:57:35 AM PDT · by Neville72 · 82 replies · 2,520+ views
    Gizmag ^ | 4/19/2006 | Staff
    High efficiency flat light source could be the end for the light bulb April 19, 2006 The end of the lightbulb is nigh! Scientists studying organic light-emitting devices (OLEDs) have made a critical leap from single-color displays to a highly efficient and long-lived natural light source. The invention is the latest fruit of a 13-year OLED research program led by Mark Thompson, professor of chemistry at USC and Stephen Forrest of the University of Michigan. If the device can be mass-manufactured cheaply - a realistic expectation, according to Thompson - interior lighting could look vastly different in the future. Almost...
  • In case you haven't had your fill of bling

    03/26/2006 9:27:06 PM PST · by Number57 · 7 replies · 323+ views
    Left Lane News ^ | leftlanenews.com
    In the last few days you may have read about some high-tech rims called Pimpstar. They’re available from CustomWheel and they’re unlike any rims we’ve seen before. Using built-in color LED lights, they can display any digital image on the wheels. Of course, none of this is too interesting unless you can see it in action. Luckily, we have a video after the jump…
  • Switching off bulbs for LEDs (SAN JOSE COMPANY WANTS CONSUMERS TO SEE THE LIGHT ON LEDS)

    12/06/2004 4:01:25 PM PST · by nickcarraway · 102 replies · 2,671+ views
    San Jose Mercury News ^ | Mon, Dec. 06, 2004 | Dean Takahashi
    How many engineers does it take to permanently unscrew a light bulb? At San Jose's Lumileds Lighting, the answer is hundreds. Lumileds, a joint venture of Agilent and Philips Electronics, makes semiconductor chips known as light-emitting diodes. LEDs are found everywhere, from the tiny flashes on digital cameras to the blue lights that illuminate the Arc d' Triomphe in Paris at night. And if all goes right, Lumileds will one day see its LEDs replace the common light bulb.
  • Nanotubes beam out bright light

    11/18/2005 8:12:37 PM PST · by PeaceBeWithYou · 38 replies · 1,109+ views
    Physicsweb Org ^ | 18 November 2005 | Liz Kalaugher
    Physicists in the US have generated extra-bright beams of infrared light from single-walled carbon nanotubes. The new technique is more efficient than many existing methods for producing light and could have applications in optoelectronics (Science 310 1171).Phaedon Avouris of IBM Research, Jie Liu of Duke University and co-workers began by laying down nanotubes with diameters of 2-3 nanometres by chemical vapour deposition. The nanotubes spanned trenches in a silica coating on a silicon substrate. Palladium source and drain electrodes were then added to the nanotubes. Suspended nanotubes The IBM-Duke team found that when certain voltages were applied, the nanotubes...
  • Accidental Invention Points to End of Light Bulbs

    10/22/2005 8:12:55 AM PDT · by ZGuy · 76 replies · 3,253+ views
    LiveScience ^ | 10/20/15 | Bjorn Carey
    The main light source of the future will almost surely not be a bulb. It might be a table, a wall, or even a fork. An accidental discovery announced this week has taken LED lighting to a new level, suggesting it could soon offer a cheaper, longer-lasting alternative to the traditional light bulb. The miniature breakthrough adds to a growing trend that is likely to eventually make Thomas Edison's bright invention obsolete. LEDs are already used in traffic lights, flashlights, and architectural lighting. They are flexible and operate less expensively than traditional lighting. Happy accident Michael Bowers, a graduate student...