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Nobody makes a regular tubular flourescent lamp with one end
   Science and Technology news... Forum Index -> Engineering - Lighting Forum  
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Richard
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PostPosted: Mon Jul 07, 2008 6:07 pm    Post subject: Nobody makes a regular tubular flourescent lamp with one end Reply with quote

Maybe someone knows different, but it seems that regular tubular flourescent
lamps for domestic use (T5, T8 etc) are only made with connections at both
ends. This correct? TIA.
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Richard
Guest






PostPosted: Mon Jul 07, 2008 6:12 pm    Post subject: Re: Nobody makes a regular tubular flourescent lamp with one Reply with quote

"Richard" <some_email@ntlworld.com> wrote in message
news:6deiq5F26uuqU1@mid.individual.net...
[quote]Maybe someone knows different, but it seems that regular tubular
flourescent lamps for domestic use (T5, T8 etc) are only made with
connections at both ends. This correct? TIA.
[/quote]
Just to clarify: I>m talking about straight tubes.
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Richard
Guest






PostPosted: Mon Jul 07, 2008 8:49 pm    Post subject: Re: Nobody makes a regular tubular flourescent lamp with one Reply with quote

"Richard" <some_email@ntlworld.com> wrote in message
news:6deiq5F26uuqU1@mid.individual.net...
[quote]Maybe someone knows different, but it seems that regular tubular
flourescent lamps for domestic use (T5, T8 etc) are only made with
connections at both ends. This correct? TIA.
[/quote]
I can see there is a Compact Flurescent Type S with connections at one end.
Looks like max length about 235mm. I wish something like that would go up to
about 350mm and above.
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Richard
Guest






PostPosted: Mon Jul 07, 2008 10:34 pm    Post subject: Re: Nobody makes a regular tubular flourescent lamp with one Reply with quote

"Richard" <some_email@ntlworld.com> wrote in message
news:6des8uF28u7qU1@mid.individual.net...
[quote]
"Richard" <some_email@ntlworld.com> wrote in message
news:6deiq5F26uuqU1@mid.individual.net...
Maybe someone knows different, but it seems that regular tubular
flourescent lamps for domestic use (T5, T8 etc) are only made with
connections at both ends. This correct? TIA.

I can see there is a Compact Flurescent Type S with connections at one
end.
Looks like max length about 235mm. I wish something like that would go up
to
about 350mm and above.
[/quote]

Aaah, I think I may have found something here, not a regular straight
fluorescent with contacts at one end, but contacts are at one end on this
design:

http://www.thelightbulb.co.uk/product/list.php?cat=119&green=1

Called it seems PLL compact.
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Liron
Guest






PostPosted: Tue Jul 08, 2008 2:12 pm    Post subject: Re: Nobody makes a regular tubular flourescent lamp with one Reply with quote

There are U shaped fluorescent tubes. The connections are at either end of
the tube but due to the bending of the tube they are on the same side.

Liron.

"Richard" <some_email@ntlworld.com> wrote in message
news:6deiq5F26uuqU1@mid.individual.net...
[quote]Maybe someone knows different, but it seems that regular tubular
flourescent lamps for domestic use (T5, T8 etc) are only made with
connections at both ends. This correct? TIA.
[/quote]
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Victor Roberts
Guest






PostPosted: Wed Jul 09, 2008 8:05 pm    Post subject: Re: Nobody makes a regular tubular flourescent lamp with one Reply with quote

On Mon, 7 Jul 2008 18:34:23 +0100, "Richard"
<some_email@ntlworld.com> wrote:

[quote]
"Richard" <some_email@ntlworld.com> wrote in message
news:6des8uF28u7qU1@mid.individual.net...

"Richard" <some_email@ntlworld.com> wrote in message
news:6deiq5F26uuqU1@mid.individual.net...
Maybe someone knows different, but it seems that regular tubular
flourescent lamps for domestic use (T5, T8 etc) are only made with
connections at both ends. This correct? TIA.

I can see there is a Compact Flurescent Type S with connections at one
end.
Looks like max length about 235mm. I wish something like that would go up
to
about 350mm and above.


Aaah, I think I may have found something here, not a regular straight
fluorescent with contacts at one end, but contacts are at one end on this
design:

http://www.thelightbulb.co.uk/product/list.php?cat=119&green=1

Called it seems PLL compact.

[/quote]
There are two general types of fluorescent lamps, excluding
those with an integral ballast. One is called "linear" in
the US and "double-ended" in most of the rest of the world.
These have contacts at both ends. The other is called
"compact" in the US and "single-ended" in most of the rest
of the world. As you have discovered, many "compact" lamps
are not very compact, so I prefer the "single-ended"
designation.

--
Vic Roberts
http://www.RobertsResearchInc.com
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