How long has the longest-lived fluorescent tube you have ever seen? « on: March 03, 2022, 06:51:47 AM » Author: bulb_tester2009
Although I can't see the longest-lived lamp tube, because T12 lamp tubes are not common in China. The longest-lived lamp I have ever seen is Philips' Super80 T8 lamp, which has a lifespan of 15,000 hours.
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I've been collecting light bulbs since I was 2 years old and I've been collecting them ever since.
 
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Bulb base in China:E12(CES) E14(SES) B22d(BC) E27(ES) E40(GES)

	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #3 on: March 04, 2022, 01:25:50 AM » Author: bulb_tester2009
My grandparents have a set of f20t12 halophosphate fluorescent tubes made in the 1990s. Although they are not used much, their service life is much longer than the nominal 6000 hour service life
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I've been collecting light bulbs since I was 2 years old and I've been collecting them ever since.
 
One of the few Chinese users here
Note:
Bulb base in China:E12(CES) E14(SES) B22d(BC) E27(ES) E40(GES)

	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #4 on: March 16, 2022, 11:19:18 PM » Author: Silverliner
I have seen some Duro-Test F40T12s last 15 years in commercial use.
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	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #5 on: March 16, 2022, 11:29:14 PM » Author: thelightingman
I have a few T12 tubes that are about 30 or so years old that still work, one of them has major end blackening though but it still works.
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	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #6 on: March 17, 2022, 08:59:32 PM » Author: bulb_tester2009
Quote from: thelightingman on March 16, 2022, 11:29:14 PM I have a few T12 tubes that are about 30 or so years old that still work, one of them has major end blackening though but it still works. 我那个也差不多30年了 Mine is almost 30 years
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I've been collecting light bulbs since I was 2 years old and I've been collecting them ever since.
 
One of the few Chinese users here
Note:
Bulb base in China:E12(CES) E14(SES) B22d(BC) E27(ES) E40(GES)

	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #7 on: March 18, 2022, 05:05:25 AM » Author: funkybulb
I had a pair westinghouse tube installed in 1984 it lasted until 2007  It became too  hard to start on rapid start.  With ends glowing doing  Nothing.
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	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #8 on: March 24, 2022, 11:32:51 AM » Author: AngryHorse
In my last workplace we had an 8 foot single batten to the side of the paint plant, it was removed from the new circuit when they fitted 400 watt halides, but was fitted as a night light when the main factory lighting was switched off, and was put on a permanent live running 24 hours a day! As a result it’s GE tube ran for something like 10 years with probably one switch off each year over the Christmas week!, until it exhausted all its mercury and just ran pink!  That’s the longest surviving T12 tube I ever remember!
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	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #9 on: March 28, 2022, 12:56:07 AM » Author: bulb_tester2009
Quote from: AngryHorse on March 24, 2022, 11:32:51 AM In my last workplace we had an 8 foot single batten to the side of the paint plant, it was removed from the new circuit when they fitted 400 watt halides, but was fitted as a night light when the main factory lighting was switched off, and was put on a permanent live running 24 hours a day! As a result it’s GE tube ran for something like 10 years with probably one switch off each year over the Christmas week!, until it exhausted all its mercury and just ran pink!  That’s the longest surviving T12 tube I ever remember! There is an F28T5 tube at the exit of the underground garage of our residential building, which cannot be seen clearly etch, and it is still bright after more than 15 years of uninterrupted work for 24 hours
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I've been collecting light bulbs since I was 2 years old and I've been collecting them ever since.
 
One of the few Chinese users here
Note:
Bulb base in China:E12(CES) E14(SES) B22d(BC) E27(ES) E40(GES)

	Re: How long has the longest-lived fluorescent tube you have ever seen? « Reply #10 on: April 07, 2022, 11:40:02 PM » Author: 108CAM
For me it would be my Brass-ender Philips F40T12 tube made in Australia by ELMA. It is the oldest fluorescent tube in my collection and also my best trash-picked fluro of all time! I don't know how many hours it's done but it would have to be a lot considering how old it is. The Canadian-made Sylvania F20T12's in my AJ Ferguson Zodiac are a very close second place as they are original to the fixture. These aren't in my collection but still deserve a mention. All 8 2xF36T8 fixtures in my dad's shed have been running on their original tubes and gear for almost 25 years and counting!
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