Mostly mercury vapor lamp with a color correcting phosphor. When the lamp turned on, most of its emission, is at the short wave UV, so the majority of the visible emission, comes from the color correcting phosphor, which is red colored, which is why the lamp is reddish pink at start up.
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I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.
I only working with the international date format (dd.mm.yyyy).
I lives in Israel, which is a 220-240V, 50hz country.