Closeup of the mercury arc and the tungsten filament of my Osram HWL(MBTF) 160W date code: f278
I've done this with my ND1000 filter.

Closeup of the mercury arc and the tungsten filament of my Osram HWL(MBTF) 160W date code: f278

I've done this with my ND1000 filter.

Screenshot_20210128-160127.jpg 1000071379.jpg IMG_5538.JPG Thorn_50W_Warm_White_1.JPG IMG_20231216_053237.jpg
File information
Filename:IMG_1235.JPG
Album name:dor123 / Lamps
Manufacturer:Ledvance, China
Type/Model:Osram HWL(MBTF) 160W
Wattage:160W
Date manufactured:Date code: f278
Filesize:909 KiB
Date added:17 Apr, 2026
Dimensions:2048 x 1536 pixels
Displayed:263 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=24591
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AngryHorse   [18 Apr, 2026 at 08:12 AM]
Interesting how the discharge tube on MBTFs don’t seem to cloud up as fast as the straight mercury ones do, I’ve run mine for many hundreds of hours and the tube still looks factory fresh! Smile
dor123   [18 Apr, 2026 at 09:05 AM]
This lamp was very little used. I mainly used the Philips ML 160W which its arctube clouded (And this winter I used my Aliexpress SBMV lamp).

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