You are viewing an obsolete version of the DU website which is no longer supported by the Administrators. Visit The New DU.
Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

LEDs Emerge to Fight Fluorescents [View All]

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » Topic Forums » Environment/Energy Donate to DU
jpak Donating Member (1000+ posts) Send PM | Profile | Ignore Fri May-11-07 04:40 PM
Original message
LEDs Emerge to Fight Fluorescents
Advertisements [?]
http://www.lasvegassun.com/sunbin/stories/tech/2007/may...

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 is on or off.

Those LEDs were usually red or green, but a scientific breakthrough in the 1990s paved the way for the production of LEDs that produce white light. Because they use less power than standard incandescent bulbs, white LEDs have become common in flashlights.

<more>
Printer Friendly | Permalink |  | Top
 
  -LEDs Emerge to Fight Fluorescents jpak  May-11-07 04:40 PM   #0 
  - The LEDs will be much better than compact flourescents  lvx35   May-11-07 04:46 PM   #1 
  - Compact fluorescents have mercury- a major problem; how many applications can LEDs do?  philb   May-13-07 09:34 AM   #11 
     - Coal-fired powerstations put out far more Hg every day.  Nihil   May-14-07 06:51 AM   #14 
  - So, if a bulb costs $50 but uses 1/10 of the energy  ThomCat   May-11-07 04:48 PM   #2 
  - it's a "comparing apples to oranges" question....  mike_c   May-11-07 04:52 PM   #4 
  - Yes, but how long do you need to use that bulb  ThomCat   May-11-07 04:54 PM   #5 
     - from the OP...  jpak   May-11-07 05:00 PM   #6 
        - So not only do LED's last 50 times longer  XemaSab   May-13-07 10:21 AM   #13 
  - Depends on the bulb it replaces  Warpy   May-11-07 05:32 PM   #7 
  - I have a Stanley brand LED flashlight... 6 large white LEDs...  HypnoToad   May-11-07 04:50 PM   #3 
  - My newest led flashlight has 52 led's and uses 3 AA batteries  madokie   May-11-07 07:02 PM   #8 
     - Are they starting to make LED interior lights?  philb   May-13-07 09:42 AM   #12 
  - I have an LED flashlight  necso   May-11-07 08:24 PM   #9 
  - I've long thought about setting up an aquarium with LED lighting.  seasat   May-11-07 09:16 PM   #10 
  - I'm starting to play with LED lights...  hunter   May-14-07 11:13 AM   #15 
 

Home » Discuss » Topic Forums » Environment/Energy Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC