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The colour of my Osram HQI-TS 70W/WDL Excellence It is far from halogen lamps, compared to Philips MHN-TD 70W/730 which uses the same chemistry Dy-Tl-Na, and even pre-Excellence HQI-TS 70W/WDL, which have tin instead of dysprosium. Why?

The colour of my Osram HQI-TS 70W/WDL Excellence

It is far from halogen lamps, compared to Philips MHN-TD 70W/730 which uses the same chemistry Dy-Tl-Na, and even pre-Excellence HQI-TS 70W/WDL, which have tin instead of dysprosium.
Why?

20250406_103639.jpg 1000103306.jpg IMG_9710.JPG 20250406_143514.jpg 20250406_135133.jpg
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Filename:IMG_9710.JPG
Album name:dor123 / Lamps
Filesize:1137 KiB
Date added:06 Apr, 2025
Dimensions:2048 x 1536 pixels
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URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=22768
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