Mazda 125W MV lamp under the BLB T12 fixture
I grabbed the 125W MV lamp that I got from Andy back in October 2025 and although it has the early type of phosphor it still glowed pink under the BLB tube

Mazda 125W MV lamp under the BLB T12 fixture

I grabbed the 125W MV lamp that I got from Andy back in October 2025 and although it has the early type of phosphor it still glowed pink under the BLB tube

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dor123   [11 Feb, 2026 at 05:14 PM]
It is yttrium vanadate or magnesion germanate?
Andy   [11 Feb, 2026 at 06:55 PM]
This is a 400W lamp from the 1960s. The phosphor is magnesium fluorogermanate I believe.

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