Re: quasi-compatible base / CFLuorescent
- From: andrew@xxxxxxxxxxxxxxxxxxxx (Andrew Gabriel)
- Date: 21 Apr 2008 08:14:59 GMT
In article <guydnX74MPDKnpHVnZ2dnUVZ_uydnZ2d@xxxxxxxxxxx>,
Jeff Engel <searcher623@xxxxxxxxxxx> writes:
I never puttered around with CFLs and base sockets to see what combos
"almost work". I am under the belief that if the lamp fits the socket,
it WILL work, assuming the mfg used the right ballast with the socket.
Are there any "false fit" combinations that will allow a CFL lamp to
plug into a socket, light up, but not put out full lumens? It's too bad
that the CFL socket designations had to be so obtuse, and the lamps
themselves so singularly mated to a socket type.
This is going to depend on the ballast type and in some
cases the mains voltage. In UK (240V), all the PL lamps
are interchangable on a series ballast because they run
at the same tube current, and the tube voltage drop is
small compared with the ballast voltage drop so the
different tube lengths (voltage drops) have too small
an effect on the tube current to worry about. However,
on a 120V mains supply, that may well not be the case
as there's significantly less voltage headroom. So
although they were designed in Europe with the same
bases because they would be electrically interchangable,
that may not work well in the US. I believe the same
design applies to the 2D lamps -- although there are a
few different bases used, there are many more different
power ratings and the lamps with the same bases were
supposed to be interchangable on 220-240V supplies.
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
.
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