On Mon, 10 Nov 2008 09:17:15 -0800 (PST), Richard Russell
wrote:

This is more of a rant than a question... Why are there two similar
(but incompatible) lengths of 20W T4 slimline fluorescent tube - the
so-called 'Eterna' variety (as sold by B&Q) which is 578mm between the
ends of the pins, and the 'Standard' variety which is 567mm between
the ends of the pins?

I'm finding it difficult to obtain replacements - at a sensible price
- for the latter size (567mm inclusive) with 3400K colour
temperature. TLC only do 4000K..... grr!

Richard.
http://www.rtrussell.co.uk/
To reply by email change 'news' to my forename.


You've obviously measured yours but catalogue listings are often
completely wrong. Screwfix seem to measure tubes by overall length
including the packaging rather than the tube length, or the length
including pins.

For instance 91349 36W T8 - a "4ft tube" is listed as 1283mm long,
51944 an economy 36W T8 is apparently over 3 inches shorter at 1200mm
long - in most cases the actual tube is circa 1210mm long including
the pins, a gnats under 4ft.




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