🔵 Cyxus Blue Light Testing Card - Single Test Card for Blue Ray Tester Review

Although the card appeared to work with the blue LED on, when using my sunglasses or tinted glasses (which did not have a blue light filter function) the blue LED was filtered out by Still on the postcard. That does not work. Not recommended.

There is a postcard. The card says there is a tester in the package. but there is no light. No tester. The actual blue light (not what you have around the house) has to be purchased separately. So I did. For $5.95 I get a new test card and a blue lightbulb so I can actually test: https://www.amazon.com/gp/product/B078ZDL58H. If you don't have a blue lightbulb handy, use your cash to get what you need. for blue light testing, not just maps.

I recently bought new blue light blocking glasses online. However, since the lenses were clear, I wasn't sure if the lenses actually filtered blue light. I bought a Cyxus card to test blue light and light. I shone blue light through my old unfiltered lenses and the map turned dark blue in seconds. I did the same with my new lenses and the card only changed a very faint blue color. So I think the $5 is well spent knowing that the extra $30 I spent on lenses really works. The only downside is…