What lightbulb has a CRI (color rendering index) of over 90?

Most lightbulb packaging doesn't mention the CRI. I need it for Seasonal Affective Disorder, and I'd rather just get the lightbulbs and put them in regular lamps instead of buying the insanely expensive S.A.D.Lamps on the market. Many lightbulbs claim to have "like-daylight" output or be "full spectrum" but those are marketing terms.

Asked by gosling357 59 months ago Similar questions: lightbulb CRI color rendering index 90 Health > Mental Health.

Similar questions: lightbulb CRI color rendering index 90.

Not just CRI I don’t think CRI alone is enough to identify a bulb worthwhile for SAD treatment. The CRI refers specifically to the ability of the bulb to reproduce color compared to a reference source at the same color temperature (CRI = 100). It’s my understanding that SAD and other "full spectrum" bulbs (including grow lamps) incorporate not only visible light characteristics but also UVB and UVA light.

That said, bulbs.com lets you search by a bulb’s CRI rating, e.g. , this link to all their bulbs with CRI > 90. Be aware that "like daylight" as a marketing term may only refer to the bulb’s color temperature, daylight being in the 5000K range -- such a bulb might not be making a claim to CRI or UVA/B spectra. Also "full spectrum" might refer to a high CRI but not to UVA/B, instead just an indication that some creative phosphor use was applied to aid color reproduction.

Maybe I'm way off base with the UVA/UVB stuff, but if so the link above ought to help you find light bulbs with a high CRI. TeeSeeJay's Recommendations Into the Light Amazon List Price: $23.50 Used from: $0.01 Average Customer Rating: 3.5 out of 5 (based on 6 reviews) Light: Medicine of the Future: How We Can Use It to Heal Ourselves NOW Amazon List Price: $16.95 Used from: $4.99 Average Customer Rating: 4.5 out of 5 (based on 10 reviews) Light Years Ahead: The Illustrated Guide to Full Spectrum and Colored Light in Mindbody Healing Amazon List Price: $19.95 Used from: $22.19 Average Customer Rating: 4.5 out of 5 (based on 7 reviews) Winter Blues: Seasonal Affective Disorder: What It Is and How to Overcome It, Revised and Upda Amazon List Price: $15.95 Used from: $0.86 Average Customer Rating: 4.5 out of 5 (based on 8 reviews) .

Here is a website that will list bulbs by CRI I'm not sure if you need a bulb with a high or low CRI (I'm not sure of the scale for CRI). But, this website will give you listings of CRI by "high" and "low" categories, with more information for each of the bulbs. Sources: goodmart.com/facts/light_bulbs/cri.aspx .

1 newbie691678, regarding your answer "Here is a website that will list bulbs by CRI":Thank you! I've been looking for a website like this. :) .

Newbie691678, regarding your answer "Here is a website that will list bulbs by CRI":Thank you! I've been looking for a website like this. :).

2 TeeSeeJay, regarding your answer "not just CRI": I obviously need to do more research. Thank you for your informative and comprehensive answer. :) .

TeeSeeJay, regarding your answer "not just CRI": I obviously need to do more research. Thank you for your informative and comprehensive answer. :).

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