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

Reply #52: My impression was that the inductor that buzzes is much smaller in LED lamps. [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 » General Discussion Donate to DU
backscatter712 Donating Member (1000+ posts) Send PM | Profile | Ignore Mon May-23-11 02:29 PM
Response to Reply #50
52. My impression was that the inductor that buzzes is much smaller in LED lamps.
Edited on Mon May-23-11 02:36 PM by backscatter712
With LEDs, you're not transforming up to a few hundred volts like you'd need for a CFL, you're transforming down, and rectifying to turn the the power into a clean DC current that the LED likes. So my impression is that the inductor can be much smaller, which helps with the noise factor.

Correct me if I'm wrong on this.
Printer Friendly | Permalink |  | Top
 
  -How One States Light Bulb Legislation Could Impact All U.S. Manufacturing The Straight Story  May-21-11 02:33 PM   #0 
  - I doubt it.  kristopher   May-21-11 02:38 PM   #1 
  - i have to go to south carolina for my light bulbs?  madrchsod   May-21-11 02:40 PM   #2 
  - Just by halogen incandescent lamps; you'll be very satisfied with them.  Tesha   May-21-11 07:14 PM   #18 
     - If you like induced epilepsy, yes  AndiMer   May-22-11 03:21 AM   #20 
     - You have no idea what a halogen lamp is, do you? (NT)  Tesha   May-22-11 12:18 PM   #28 
     - Huh?  NutmegYankee   May-22-11 06:12 PM   #37 
     - For medical reasons our clinic will not use cfb's and I dislike halogen for the heat byproduct.  MedicalAdmin   May-22-11 06:40 AM   #24 
     - Per unit of light, halogen lamps put out less heat than the equivalent conventional incandescent.  Tesha   May-22-11 12:21 PM   #29 
        - Thanks - good to know.  MedicalAdmin   May-23-11 04:55 PM   #56 
     - And "cheap to buy" is scorned because?  WinkyDink   May-22-11 12:31 PM   #32 
     - ...because life-cycle cost is a much better measure for most of us. (NT)  Tesha   May-22-11 07:51 PM   #39 
     - They also help keep my house warmer in the winter so I burn less propane.  scarletwoman   May-22-11 06:14 PM   #38 
     - Electricity is more expensive than propane.  Tesha   May-22-11 07:52 PM   #40 
        - Proportionately, not for me. I keep my thermostat at 65 all winter.  scarletwoman   May-22-11 08:29 PM   #42 
           - Localized heating is often a better choice than generalized heating.  Tesha   May-23-11 08:15 AM   #43 
           - Enough! I've made the choices that work for me. My 5 incandescent bulbs are so utterly  scarletwoman   May-23-11 05:48 PM   #57 
           - You bet it does in your case cause you have to have the light anyway  madokie   May-23-11 08:23 AM   #44 
              - Thank you. I'm sick of arguing about this.  scarletwoman   May-23-11 06:15 PM   #58 
     - Sounds like a good enough reason to me. Not everyone has millions of dollars.  Shagbark Hickory   May-23-11 04:14 PM   #54 
        - A halogen light bulb costs "millions of dollars"? (NT)  Tesha   May-24-11 11:39 AM   #61 
  - They can't be.  Pab Sungenis   May-21-11 02:44 PM   #3 
  - If your theory were correct then the federal government  former9thward   May-21-11 03:08 PM   #5 
     - In theory they could.  Pab Sungenis   May-21-11 03:17 PM   #6 
     - No they could not.  former9thward   May-21-11 03:41 PM   #8 
     - They use the commerce clause to regulate the weeds growing in your yard..  Fumesucker   May-21-11 05:26 PM   #17 
  - The white light of incandescent is modern and healthy. The yellow light of CFL's is depressing.  earcandle   May-21-11 02:54 PM   #4 
  - There are white light CFLs...  jmowreader   May-21-11 04:09 PM   #11 
  - at 1000lightbulbs.com they will not ship Full Spectrum lights to CA. I want some more before they  earcandle   May-22-11 02:06 AM   #19 
  - Besides yellow CFL bug lights, they also make a good CFL Black light.  RC   May-21-11 04:39 PM   #14 
  - There is no such thing as "white light bulbs"  Scruffy1   May-22-11 04:50 AM   #22 
  - I hope they succeed and that other states follow suit.  scarletwoman   May-21-11 03:19 PM   #7 
  - c0ompletely agree.  cali   May-21-11 03:57 PM   #10 
  - I'll agree with that! n/t  Little Star   May-21-11 04:35 PM   #13 
  - +1 to that  distantearlywarning   May-22-11 12:27 PM   #31 
  - What's next? 8 MPG cars, burning leaded gas?  Old and In the Way   May-21-11 03:50 PM   #9 
  - Whatever it takes...  saras   May-21-11 04:13 PM   #12 
  - Deleted message  Name removed   May-21-11 05:16 PM   #15 
  - The lightbulbs couldn't be transported on an interstate or U.S. highway either....  FLAprogressive   May-21-11 05:18 PM   #16 
  - nor could any parts or materials be brought to them from out of state  ThomWV   May-22-11 12:46 PM   #34 
  - I like flourescent, and  Lionessa   May-22-11 04:01 AM   #21 
  - Time to start stocking up on incandescents.  MadHound   May-22-11 05:26 AM   #23 
  - Buy "halogen" lamps; they're just slightly-more-efficient incandescent lamps.  Tesha   May-22-11 12:25 PM   #30 
  - Read today's grocery ads: some stores are selling GE bulbs "Buy 1, Get 1."  WinkyDink   May-22-11 12:33 PM   #33 
  - The Climate Change Industry will probably call for a second civil war.  Mr. Jefferson   May-22-11 06:54 AM   #25 
  - Where is the Republican majority in Congress?  RandiFan1290   May-22-11 07:01 AM   #26 
  - Jon Stewart showed video of the Fox News clowns whining about spiral shaped bulbs  Kolesar   May-22-11 07:30 AM   #27 
  - Many of us in the Autism Rights community hate the banning of incadescent bulbs.  Odin2005   May-22-11 12:52 PM   #35 
  - Thank you for speaking up! Outlawing the manufacture of incandescents is ridiculous.  scarletwoman   May-22-11 06:08 PM   #36 
  - So buy halogen lamps.  Tesha   May-22-11 07:54 PM   #41 
  - Isn't being in a minority charming?  bobbolink   May-23-11 08:54 AM   #45 
  - Would LEDs be a solution to this problem?  backscatter712   May-23-11 09:45 AM   #46 
     - Likely, yes.  Odin2005   May-23-11 10:49 AM   #48 
        - Also googling this issue...  backscatter712   May-23-11 11:00 AM   #49 
           - Any buzzing made by a CFL has nothing to do with "thousands of volts"; it has to do...  Tesha   May-23-11 11:09 AM   #50 
           - My impression was that the inductor that buzzes is much smaller in LED lamps.  backscatter712   May-23-11 02:29 PM   #52 
              - There's the line-frequency series input inductor;  Tesha   May-23-11 03:48 PM   #53 
                 - It's funny. I'll tell people that the buzz from some electronic device is annoying...  Odin2005   May-24-11 10:24 AM   #59 
                    - Mr. Tesha just replaced all of the fluorescent lights in his workshop.  Tesha   May-24-11 11:13 AM   #60 
           - Yes, the BUZZ, I hate that!  Odin2005   May-23-11 11:23 AM   #51 
  - Will there be jail for people that bring light bulbs across state lines??  Angry Dragon   May-23-11 10:21 AM   #47 
  - I don't like this whole lighbulb thing. They let tobacco companies murder millions of people but  Shagbark Hickory   May-23-11 04:15 PM   #55 
 

Home » Discuss » General Discussion 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