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Warming up and hot restrike of my Osram HCI-TS 70W/830 WDL CMH lamp
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https://www.youtube.com/watch?v=ZNRnc2G_3hQ
It takes slightly shorter (1:30 mins average) than my most white QMH lamps, but takes 7(!) mins to hot restrike, despite it is on a Philips HID-PrimaVision PV C 70 /S CDM electronic HID ballast and have a round arctube.
During run-up, it passes green colour, probably the intensity of the thallium line here, increases much faster than that of the sodium.
Also: Notice how bright and long thermal afterglow the arctube have.
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