This rechargeable UV flashlight emits true shortwave UVC light 

in a beam that produces a brilliant fluorescent response on 254nm 

shortwave-reactive minerals like Willemite, Calcite, Fluorapatite, 

Feldspars, Rubellite, Scheelite, Wollastonite, Hardystonite, Clinohedrite,

Autunite and many, many other UV Fluorescent Minerals. 

It is a beneficial tool for experts, collectors, enthusiasts.

Specifications:

Product name: 254nm UVC LED flashlight

Item size: about 132*24*15mm  

UVC Peak wavelength: 254nm

UV power intensity: 140mW-160mW

Built-in Rechargeable battery Included

Power source: USB Charger

Material: Aircraft-grade Aluminum alloy+Brass

Package Included:

1 x 254nm UVC LED Flashlight

1 x USB charger

1 x Plastic gift box