Patrick
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I've noticed with that my dimmable CFLs appear yellowish at full output and purplish at lower levels. What causes the shift? Is it related to the temperature of the lamp? I don't think it's merely a perceived difference without an actual change in color. It doesn't happen when dimming LED lamps.
I've seen the same effect with a low ballast factor ballast compared to normal ballast factor. However, I don't see it with the energy-saving Ar/Kr lamps such as 34W T12 or 28W T8. If anything those look slightly more yellowish despite being dimmer.
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Patrick C., Administrator Lighting-Gallery.net
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dor123
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Other loves are printers/scanners/copiers, A/Cs
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When dimming a triphosphors fluorescent lamp, this may yield a change in the color composition of the three phosphors, resulting in color shift. This can also occur with halophosphors: Cool white halophosphors looks brownish when underdrivened on emergency lighting, and cool white triphosphors looks pinkish when underdrivened on emergency lighting and daylight halophosphors looks a pale grayish bluish white when used on emergency lighting.
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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.
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