Multi-Wavelength Bi-Luminescent UVA/UVB/UVC/Far-UVC Light 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.

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