Re: The insane progress nobody is talking about

Liste des GroupesRevenir à ras written 
Sujet : Re: The insane progress nobody is talking about
De : wollman (at) *nospam* hergotha.csail.mit.edu (Garrett Wollman)
Groupes : rec.arts.sf.written
Date : 20. Jun 2024, 21:04:01
Autres entêtes
Organisation : MIT Computer Science & Artificial Intelligence Lab
Message-ID : <v521vh$2107$1@usenet.csail.mit.edu>
References : 1 2 3
User-Agent : trn 4.0-test77 (Sep 1, 2010)
In article <hWMcO.78517$qgY9.26150@fx17.iad>, Random  <random@who.cares> wrote:

The short answer, is the cheap power conversion electronics in the base of
most LED bulbs. An LED is a direct current devise, so there is a set of
electronics in the base of the bulb to convert the AC to DC.
>
A conventional bulb's filament is not sensitive to AC voltage fluctionations,
where the conversion electronics is. My guess is that your wiring to that
light is causing voltage dips and is stressing the electronics in the LED bulb
base.

The other direction is also possible: in North America, the nominal AC
power is 120 volts RMS -- it used to be 117, 115, and 110 in various
places, and the specification still allows for it to dip that low.
(In Japan, it's even lower, 100 volts.)  But the specification *also*
allows the actual voltage to be significantly above 120, technically
as high as 132 V, and in some places it is common for utility power to
be "running hot" by design.  Power at my home is typically 128 volts
during the low-load parts of the year.  The power converter in an LED
bulb may not be designed to operate at the high end of its range all
of the time, and may dissipate more heat than it was designed to.

-GAWollman

--
Garrett A. Wollman    | "Act to avoid constraining the future; if you can,
wollman@bimajority.org| act to remove constraint from the future.  This is
Opinions not shared by| a thing you can do, are able to do, to do together."
my employers.         | - Graydon Saunders, _A Succession of Bad Days_ (2015)

Date Sujet#  Auteur
19 Jun 24 * The insane progress nobody is talking about95Christian Weisgerber
19 Jun 24 +* Re: The insane progress nobody is talking about63Robert Woodward
19 Jun 24 i+* Re: The insane progress nobody is talking about49Scott Dorsey
20 Jun 24 ii+* Re: The insane progress nobody is talking about46John Savard
20 Jun 24 iii`* Re: The insane progress nobody is talking about45Paul S Person
20 Jun 24 iii `* Re: The insane progress nobody is talking about44John Savard
24 Jun 24 iii  `* Re: The insane progress nobody is talking about43Joy Beeson
25 Jun 24 iii   `* Re: The insane progress nobody is talking about42Cryptoengineer
26 Jun 24 iii    `* Re: The insane progress nobody is talking about41Paul S Person
27 Jun 24 iii     `* Re: The insane progress nobody is talking about40Dimensional Traveler
27 Jun 24 iii      +* Re: The insane progress nobody is talking about37Cryptoengineer
27 Jun 24 iii      i+- Re: The insane progress nobody is talking about1James Nicoll
27 Jun 24 iii      i+- Re: The insane progress nobody is talking about1Paul S Person
28 Jun 24 iii      i`* Re: The insane progress nobody is talking about34Scott Dorsey
28 Jun 24 iii      i +* Re: The insane progress nobody is talking about29Garrett Wollman
28 Jun 24 iii      i i`* Re: The insane progress nobody is talking about28Paul S Person
28 Jun 24 iii      i i +* Re: The insane progress nobody is talking about19James Nicoll
28 Jun 24 iii      i i i+* Re: The insane progress nobody is talking about4Robert Woodward
29 Jun 24 iii      i i ii+- Re: The insane progress nobody is talking about1Dimensional Traveler
29 Jun 24 iii      i i ii`* Re: The insane progress nobody is talking about2Scott Dorsey
30 Jun 24 iii      i i ii `- Re: The insane progress nobody is talking about1Dimensional Traveler
29 Jun 24 iii      i i i+* Re: The insane progress nobody is talking about12Paul S Person
29 Jun 24 iii      i i ii`* Re: The insane progress nobody is talking about11Scott Dorsey
29 Jun 24 iii      i i ii +* Re: The insane progress nobody is talking about3William Hyde
30 Jun 24 iii      i i ii i+- Re: The insane progress nobody is talking about1Dimensional Traveler
30 Jun 24 iii      i i ii i`- Re: The insane progress nobody is talking about1Paul S Person
30 Jun 24 iii      i i ii +* Re: The insane progress nobody is talking about4Paul S Person
30 Jun 24 iii      i i ii i`* Re: The insane progress nobody is talking about3Dimensional Traveler
1 Jul 24 iii      i i ii i `* Re: The insane progress nobody is talking about2Paul S Person
2 Jul 24 iii      i i ii i  `- Re: The insane progress nobody is talking about1Dimensional Traveler
10 Jul 24 iii      i i ii +- Re: The insane progress nobody is talking about1Garrett Wollman
11 Jul 24 iii      i i ii +- Re: The insane progress nobody is talking about1Scott Dorsey
11 Jul 24 iii      i i ii `- Re: The insane progress nobody is talking about1Dimensional Traveler
3 Jul 24 iii      i i i`* The insane corruption nobody is talking about2Titus G
3 Jul 24 iii      i i i `- Re: The insane corruption nobody is talking about1Paul S Person
28 Jun 24 iii      i i +- Re: The insane progress nobody is talking about1Garrett Wollman
28 Jun 24 iii      i i +* Re: The insane progress nobody is talking about2Garrett Wollman
29 Jun 24 iii      i i i`- Re: The insane progress nobody is talking about1Cryptoengineer
29 Jun 24 iii      i i `* Re: The insane progress nobody is talking about5Dimensional Traveler
29 Jun 24 iii      i i  `* Re: The insane progress nobody is talking about4Lynn McGuire
29 Jun 24 iii      i i   `* Re: The insane progress nobody is talking about3Dimensional Traveler
29 Jun 24 iii      i i    +- Re: The insane progress nobody is talking about1Chris Buckley
29 Jun 24 iii      i i    `- Re: The insane progress nobody is talking about1Paul S Person
11 Jul 24 iii      i `* Re: The insane progress nobody is talking about4William Hyde
11 Jul 24 iii      i  `* Re: The insane progress nobody is talking about3Paul S Person
12 Jul 24 iii      i   `* Re: The insane progress nobody is talking about2William Hyde
12 Jul 24 iii      i    `- Re: The insane progress nobody is talking about1Paul S Person
27 Jun 24 iii      +- Re: The insane progress nobody is talking about1Paul S Person
27 Jun 24 iii      `- Re: The insane progress nobody is talking about1Paul S Person
20 Jun 24 ii`* Re: The insane progress nobody is talking about2BillGill
20 Jun 24 ii `- Re: The insane progress nobody is talking about1ted@loft.tnolan.com (Ted Nolan
20 Jun 24 i+* Re: The insane progress nobody is talking about12Paul S Person
21 Jun 24 ii+* Re: The insane progress nobody is talking about2Mike Spencer
21 Jun 24 iii`- Re: The insane progress nobody is talking about1Paul S Person
25 Jun 24 ii`* Re: The insane progress nobody is talking about9Michael F. Stemper
25 Jun 24 ii +* Re: The insane progress nobody is talking about7Paul S Person
26 Jun 24 ii i+* Re: The insane progress nobody is talking about2Michael F. Stemper
26 Jun 24 ii ii`- Re: The insane progress nobody is talking about1Paul S Person
1 Jul 24 ii i`* Re: The insane progress nobody is talking about4Robert Carnegie
1 Jul 24 ii i `* Re: The insane progress nobody is talking about3Paul S Person
2 Jul 24 ii i  +- Re: The insane progress nobody is talking about1Cryptoengineer
2 Jul 24 ii i  `- Re: The insane progress nobody is talking about1Paul S Person
25 Jun 24 ii `- Re: The insane progress nobody is talking about1Scott Dorsey
20 Jun 24 i`- Re: The insane progress nobody is talking about1Garrett Wollman
19 Jun 24 +* Re: The insane progress nobody is talking about6Cryptoengineer
20 Jun 24 i`* Re: The insane progress nobody is talking about5Christian Weisgerber
20 Jun 24 i `* Re: The insane progress nobody is talking about4Cryptoengineer
20 Jun 24 i  `* Re: The insane progress nobody is talking about3Scott Dorsey
21 Jun 24 i   `* Re: The insane progress nobody is talking about2Scott Dorsey
21 Jun 24 i    `- Re: The insane progress nobody is talking about1Christian Weisgerber
20 Jun 24 +* Re: The insane progress nobody is talking about7Paul S Person
21 Jun 24 i`* Re: The insane progress nobody is talking about6Paul S Person
22 Jun 24 i `* Re: The insane progress nobody is talking about5Paul S Person
22 Jun 24 i  +- Re: The insane progress nobody is talking about1Jay E. Morris
1 Jul 24 i  `* Re: The insane progress nobody is talking about3Robert Carnegie
1 Jul 24 i   `* Re: The insane progress nobody is talking about2Paul S Person
2 Jul 24 i    `- Re: The insane progress nobody is talking about1Paul S Person
22 Jun 24 `* Re: The insane progress nobody is talking about18Lynn McGuire
22 Jun 24  +* Re: The insane progress nobody is talking about2Scott Dorsey
22 Jun 24  i`- Re: The insane progress nobody is talking about1Paul S Person
22 Jun 24  `* Re: The insane progress nobody is talking about15Paul S Person
22 Jun 24   +- Re: The insane progress nobody is talking about1Jay E. Morris
22 Jun 24   +* Re: The insane progress nobody is talking about4Scott Dorsey
22 Jun 24   i+* Re: The insane progress nobody is talking about2Lynn McGuire
23 Jun 24   ii`- Re: The insane progress nobody is talking about1Paul S Person
22 Jun 24   i`- Re: The insane progress nobody is talking about1Garrett Wollman
24 Jun 24   `* Re: The insane progress nobody is talking about9Lynn McGuire
24 Jun 24    +* Re: The insane progress nobody is talking about7Lynn McGuire
25 Jun 24    i`* Re: The insane progress nobody is talking about6Jay E. Morris
26 Jun 24    i `* Re: The insane progress nobody is talking about5Lynn McGuire
26 Jun 24    i  `* Re: The insane progress nobody is talking about4Jay E. Morris
26 Jun 24    i   `* Re: The insane progress nobody is talking about3Lynn McGuire
26 Jun 24    i    `* Re: The insane progress nobody is talking about2Cryptoengineer
26 Jun 24    i     `- Re: The insane progress nobody is talking about1Lynn McGuire
25 Jun 24    `- Re: The insane progress nobody is talking about1Scott Dorsey

Haut de la page

Les messages affichés proviennent d'usenet.

NewsPortal