This works, and is true UVC.

This works, and is true UVC.

A portable UVC sterilizer that works! I’ve been through a couple other brands that were duds, but this one is great.
Don’t believe the “no battery” nonsense, this needs four AA batteries unless you want to give up the portable aspect and be tied to a USB power source (it comes with a 26 inch cable, but no wall wart.) I tried some NiMH rechargeable batteries and they work just as well as standard alkalines.
There is a UVC test card included (see pics). I illuminated it with a UVB source I have and it did not glow, so it really is only testing for UVC. I’m impressed.
UVC is bad for your skin, and really bad for your eyes. It would be a good idea to wear some UV400 rated sunglasses when using this (test ’em using the included test card.)