"Joachim Laufer" wrote in message
...
you can keep T5 tubes until the end, there is not need to replace
them like it should be done with the old tube technique

Really? That would imply that T5 tubes keep their full brightness
(or nearly so) for their entire life until they fail. Is that really true?
I know that other tubes, such as T8 and T12, do lose brightness
as they age.

--
Michi Henning Ph: +61 4 1118-2700
ZeroC, Inc. http://www.zeroc.com