Experiment ended 
My N817 test ended this morning, and this is the result of one start and 2174 hrs in 90 days!, you can see how much emitter is still on the cathodes though, even after 2000+ run hours, when their not being started every night!
This batch has now been tested 3 different ways, and the conclusion is they are indeed a manufacturing fault!

Experiment ended

My N817 test ended this morning, and this is the result of one start and 2174 hrs in 90 days!, you can see how much emitter is still on the cathodes though, even after 2000+ run hours, when their not being started every night!
This batch has now been tested 3 different ways, and the conclusion is they are indeed a manufacturing fault!

AD07A860-81DA-49D5-BE66-2CF11603B8CB.jpeg A_credit_to_the_Shaw_plant21.jpg BC406934-9DA3-4F01-96BC-5752485C1110.jpeg Beta_5_lamp_support21.JPG Box_quantity_of_18watt_SOX.jpg
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Album name:AngryHorse / Sodium lamps, (low pressure).
Date manufactured:January 2003
Filesize:2699 KiB
Date added:21 Aug, 2021
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Danny   [23 Aug, 2021 at 09:28 PM]
90 days! Worst lamp of the whole batch surely
AngryHorse   [23 Aug, 2021 at 09:46 PM]
Possibly?

Comment 1 to 2 of 2
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