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Osram 18w SOX lamp 2: status. Lamp 2 from my batch after 1 year, 3 months, 13 days in service. The lamp exhibited significant blackening around the electrodes from new so that the electrodes was not clearly visible. That seems to have cleaned up and gone white-ish. No sign of any browning in the arc tube or outer envelope. Running on no-ignitor Parma gear.

Osram 18w SOX lamp 2: status.

Lamp 2 from my batch after 1 year, 3 months, 13 days in service.
The lamp exhibited significant blackening around the electrodes from new so that the electrodes was not clearly visible. That seems to have cleaned up and gone white-ish.
No sign of any browning in the arc tube or outer envelope.
Running on no-ignitor Parma gear.

11932C9D-0E0F-4F7B-875D-2FF1B5A0E960.jpeg 387A2160~0.jpg 387A4640.JPG 387A4881.jpg 387A4888.jpg
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Filename:387A4640.JPG
Album name:FrontSideBus / HID: Low-Pressure Sodium
Filesize:1211 KiB
Date added:08 Mar, 2021
Dimensions:1365 x 2048 pixels
Displayed:29 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=15636
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Comment 1 to 8 of 8
Page: 1

Danny   [08 Mar, 2021 at 08:08 PM]
My god its never been in that long already!
FrontSideBus   [09 Mar, 2021 at 09:00 PM]
Time flies eh?
Danny   [09 Mar, 2021 at 09:09 PM]
It most certainly has!
AngryHorse   [10 Mar, 2021 at 07:24 AM]
Just out of interest, is the side rod’s of a Gamma 6 earthed?, I’m wondering if the lamp supports may have something to do with the early blackening of the later ones?
FrontSideBus   [10 Mar, 2021 at 04:17 PM]
They don't have their own physical earthing points but the bottom casting does and there is a very good connection between the two. I reckon they are too far away to have any effect anyway tbh.
AngryHorse   [10 Mar, 2021 at 09:12 PM]
I was thinking more of the connection to earth via the span support wire that would touch the lamps conductive IR coating on the later ones?
Liam   [11 Mar, 2021 at 09:41 AM]
Id of never of guessed this has done over a year! Normally these 18w SOX only last about 12 month before going black?
FrontSideBus   [13 Mar, 2021 at 06:41 PM]
I got almost 4 out of the last one.

Comment 1 to 8 of 8
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