5 Sets UVC/UVB Test Card,Test for All UVA/UVB/UVC Device Such as/Phone Cleaner/P

Description

Green UV-C test card effective test for device with UV-C light
Purple UVA/UVB test card effective test for device with UVA/UVB Light
How it work: take 1 CARD under the Light if Card changes to Luminescent color then your device are effective light if you don't know which type your Light is pls contact your device card can be tested over 500+ times. it's a PVC card not paper card.
NOTE1: test card only turns Luminescent color when exposed to a light. It will resume normal color immediately if you move test card away from the light
NOTE2: for some phone box/ UV-C Bag with zipper or only work under "cover close situation". Step 1: put test card inside phone box/ UV-C Bag Step 2: starting your phone video recorder function to record color change Step 3: put inside your Mobile to phone box/ UV-C Bag. at last you can check the video . this is the easy way to check your light are working good
Product Description