If they are like the LED traffic lights in Olympia, WA, they are NOISEY!!! Especially in the AM broadcast band.
Ghery Pettit From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, October 19, 2007 8:23 AM To: [email protected] Subject: Re: OT: LEDs replacing general lighting streetlamps How are LED lamps driven (in this application)? I though switch-mode regulators were used. If so, I wonder what the potential for EMI will be? I guess it can't get much worse, now that Broadband over Power Lines (BPL) is used in the U.S. Pat Lawler EMC/Reliability Engineer SL Power Electronics Corp. [email protected] wrote on 10/19/2007 08:01:28 AM: > ... at least, in downtown Ann Arbor Michigan. > General lighting applications have been a long sought application for > the LED industry and, while they may not make for a good reading lamp, > I'll be interested in seeing how this trial goes (and how many > bandwagoners jump on-board, before the two-year trial's results are > out). The article states that ROI is at break-even after four years for > 10 year projected lifetime for the lamps. > http://www.foxnews.com/story/0,2933,303258,00.html > > Regards, > Peter L. Tarver, PE > [email protected] - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This e-mail has been scanned by MCI Managed Email Content Service, using Skeptic(tm) technology powered by MessageLabs. For more information on MCI's Managed Email Content Service, visit http://www.mci.com. ______________________________________________________________________
