365nm UV Flashlight USB- C Rechargeable Life-grade Waterproof Ultraviolet Torch Light Handheld Mini 365nm Purple Light Wick

they work well to detect contaminants after dishwashing. For the price, they are awesome! How well they will hold up is a good question, but at the price, who cares. Many times the light will be lost before it fails.

very nice blacklight. my friend loves it. small and compact. definitely a nice buy. thank you.

I wanted one with a wavelength of 365nm, but it wasn't 365nm. Also, the rubber cap for the USB part was not included. The 365nm test used the red ink imprint area of Japanese banknotes. When I shined 365nm light on it, the imprint did not light up. Photo 1st image: USB part, 2nd image: imprint of the banknote, 3rd image: when this product is illuminated, 4th image: when illuminated by another company's 365nm light.

The light is weak, but it does the job overall. It's easy to see where I didn't clean properly in the bathrooms.

It works and looks good, made of good material, recommended.

good product