Author Topic: Does a high CRI Circline exist?  (Read 2204 times)
LampLover
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Does a high CRI Circline exist? « on: October 25, 2017, 04:54:23 AM » Author: LampLover
I have a couple of magnifier lamps that take a standard Circline FC8T9 and I was wondering if there is a higher CRI (CRI of 85 or above) version available? If they do where would I obtain one and how much $?
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Re: Does a high CRI Circline exist? « Reply #1 on: October 25, 2017, 06:58:24 AM » Author: Medved
As far as I know, CRI80+ (so tri-phorphors, so the IEC 8xx color rating) are quite common.
Due to the efficacy standards these are even the only circlines still available in Europe, but I see them on most US e-shops as well (the GE Polylux,...)...

However if the question is for higher CRI (9xx rating) there I've seen only the T5's, not the T9's anymore.
« Last Edit: October 25, 2017, 07:00:51 AM by Medved » Logged

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Re: Does a high CRI Circline exist? « Reply #2 on: October 25, 2017, 04:29:33 PM » Author: nicksfans
https://www.dazor.com/store/Circline-22W-Full-Spectrum-Fluorescent-Bulb.html

http://www.hisco.com/Catalog/Lighting-Magnification/Lighting-Accessories/Fluorescent-Lamps/FC8T9-FSB-65673

http://www.qsource.com/p-21164-dazor-fc8t9fsb-circline-magnifier-bulb-5500k-22w-4-pin-full-spectrum.aspx

https://www.bulborama.com/FC8T9-SPECTRA-BRITE-5000K-FULL-SPECTRUM-CIRCLINE-FLUORESCENT-LIGHT-BULB-p1058.html
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Re: Does a high CRI Circline exist? « Reply #3 on: October 26, 2017, 04:58:48 AM » Author: dor123
I think that these links are misleading. Not all 5000K lamps are high CRI. And websites like these, tends to mislead the consumers ("Full spectrum" is one of the examples: There is no such a thing).
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Re: Does a high CRI Circline exist? « Reply #4 on: October 26, 2017, 11:45:28 AM » Author: nicksfans
The first and fourth links list the CRI, and the second and third links are the same lamp as in the first link.
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Re: Does a high CRI Circline exist? « Reply #5 on: October 26, 2017, 10:31:47 PM » Author: LampLover
Thanks Nick (nicksfans) for finding that. I believe the standard ones the CRI is in the 60's range? I have two of the Circline fixtures (One being a Magnifier and the other a dual function lamp (Incandescent & Fluorescent) Both of the fixtures are in my gallery
I think I will get one of those for each lamp I use the magnifier one the most 
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Re: Does a high CRI Circline exist? « Reply #6 on: October 26, 2017, 10:57:53 PM » Author: nicksfans
No problem. Yes, a regular Cool White has a CRI in the low 60s. Philips also makes a Soft White Circline that's 3000K with a CRI of 80. Old-school Daylight has a CRI of 75.
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