6-in-1 QUANTADOSE® Multi-Wavelength Bi-Luminescent UVA/UVB/UVC/Far-UVC Light Reusable Professional UV Test Card

This is a great tool that I find to be an absolute must for testing all kinds of glasses worn outdoors to ensure they protect my eyes from damaging UVA and UVB rays. It is very easy to use, and the maker has a detailed explanation page on their website; see the QR code on the back of the card (and in one of my photos). While it also tests for UVC to test the veracity of sanitizing equipment, I got it primarily to test glasses along with a blacklight. I did a little research and spoke to the creator and owner of QuantaDose UV detection cards, and also read up on “Protecting your eyes from the sun’s UV light” published 7/5/22 by the US government’s National Rye Institute (NEI) on the National Health of Health’s (NIH) .gov website. According to this article, UVA and UVB can be damaging to the eyes and the article states, “Look for lenses that provide 99 to 100 percent protection from UVA and UVB or marked as having a UV400 rating.” In testing glasses, I have learned labels cannot always be trusted and sometimes it can be in the user’s favor (and in some cases there is no label at all). I did a video (1m 45s) testing these sunglasses and other glasses regarding UV protection with the QuantaDose card and a 365nm blacklight. VIDEO – My short (1m 45s) attached video shows the following: (Note I wore UV400 glasses while using the blacklight for this testing video.) 1 - The front and back of the card and 365nm blacklight 2 - Showing how the card turns violet when exposed to longwave UVA and UVB light 3 - Testing a pair of clear safety glasses that DO protect against UVA and UVB light 4 - Mislabeled glasses that do NOT protect from blue or UVA and UVB light 5 – Tests on all 3 pair of these sunglasses; they DO appear to protect against UVA and UVB light Given what I learned about eye health and UV light, I will be testing all of our sunglasses, work glasses, etc., for UVA and UVB protection for wearing outside (even on cloudy days), and all indoor reading and other glasses for blue light protection (using a blue light and a blue light detection card) …the 365nm blacklight I got and this UV detection card to me are a necessary and great investments. The credit card sized card is made of nice quality plastic and is the 3rd iteration (and most versatile) of QuantaDose’s UV cards. To me it worth far more than the $10.99 US price at the time I purchased it and is earns a well-deserved 5 (plus) stars in my book.

If you get one of the lights that have 395nm, 365nm, and 254nm, the card will light up differnt colors showing which wavelength you shine on it. Pretty nifty.

It does work as advertised. I am not sure how accurate it is, however, the level indicated seems to match what is expected in the area and based on the time of the day. The instructions can be clearer.

I haven't played with this too much yet. Was a purchase of curiosity and potential, not of a need. Its about the side of playing card. It comes in a nice black plastic pouch. Not sure yet if what we see is a REACTION on the surface of the material, or if it's just a clever way of allowing our eyes to perceive the existence of the rays through pigment interactions and reflection of light. Like that if shifts the frequency in a way that creates a visible artifact. Not sure yet. But it works. In direct sunlight, and dark it was as described. For now I keep it in the plastic pouch. But if the card does react directly and needs darkness to restore I might like to keep it in an insulated felt bag instead. In terms of cost to value ratio, I think this was well worth it. Just cheep enough to entice me to make the purchase and test it out.

I was looking for an inexpensive way to compare the effectiveness of low cost UVC sterilization products and this is it! It’s quick to use and quickly verifies whether a product generates UVC energy in the 254nm wavelength necessary to destroy bacteria and neutralize viruses. But just be aware that the phosphors used will degrade with extensive usage so keep the card in its black light proof cover when not in use. The photo shows the basic card when not being exposed, then the 2nd photo shows the card exposed by a UVC Sterilization wand at about 3 inches. Notice that the top left has the prominent UV-C glowing, which indicates the energy is in the UVC band. Then after removing the light source, if the UV in the middle circle is still visible due to the purple color surrounding it, you know that the source had an intensity greater than 300 μW/cm², which is necessary for complete sterilization when a surface is exposed for at least 5s.

Seems simple enough—pull out the card and let light shine on it, but without going to the website and scrolling through the sample images, a person that only occasionally uses the card (probably most people) won't know how to interpret the findings. Even with going to the website, there are still too many unanswered questions. It would be nice to have the sample images from the website printed on the back along with the existing QR code for more details. Even better would be to also add explanatory text on the front. For instance, what do the different shades of purple and green mean—intensity?—strongest wavelength? And when they appear in the outer ring, is that good or bad? Are there numerical values associated with the shades or rings, and if so, why are they not printed somewhere? And in the middle section, there is a key for shortwave/longwave with shades of gray. Where do those shades of gray appear?—is one the text color and the other the background?—does it only show one or the other shortwave/longwave at a time?—which one takes priority if both wavelengths are present?

It doesn't work. Im holding it in direct sunlight and comparing against another card type I have. This card is on top in my photo. Nothing lights up or changes - card is the same in darkness and sunlight.

First of all, this works great for detecting and identifying UVA vs. UVC. The problem I have is that I have 3 light sources to test. They are UVA 365nm, UVB 310nm, and UVC 255nm. The UVC detection is not specific enough, so the UVB light shows as UVC on the test card. I understand that this is not specifically designed to identify UVB, but according to the card, UVB should be indicated as longwave, along with UVA; however, it is not. My specific use case needs UVC to be detected, but not over ~280nm wavelength. If your needs aren't as demanding as mine, this is a great, quick, and easy UV detector card with more features than the competition, and for that purpose it would be 5 stars, but it doesn't fit my needs.

This card does not do anything at all even in direct UV light. I also purchased a 395nm UV flashlight and even when it is shined directly on this this card, it does nothing at all. I can't get it to fluoresce or change color under any circumstance, including natural sunlight. There are no other useful instructions on their web page and if you try to contact them, the contact page has a non-functional email which literally tells you that there will be no response. From the Quantadose website: "Send us an email (insert contact form here) This is form is just for demo purpose. No inquiries will be answered."

Dit product werkt alleen voor als je professioneel werk ga er niet vanuit dat er bij een lage straling werk van lampen voor uw vogel of aquarium want dan werken ze niet die kaart registreert alleen hoger straling

Bought this to test some UV filters and UV lights and based on rudimentary testing using these consumer products, the test card works reliably.

It doesn't work at all. Regret buying it

Perfect tool for hobby and proffesional use.