Nitecore P20-UV Precise Series Flashlight with one main LED plus four secondary ultraviolet LEDs. By Nitecore.

Features:
• Features dual light sources: one main LED plus four secondary ultraviolet LEDs. Purpose built for authentication, forensics and identification applications.
• White CREE XM-L2 (T6) LED provides maximum output of 800 lumens
• Four ultraviolet LEDs provide 320mW at 365nm
• Maximum runtime of 15.5 hours on lowest output.
• Metal micro textured reflector provides a wide cone of peripheral light.
• Dual tail switches ensure ease of use and tactical advantages
• STROBE READYTM provides direct access to strobe mode in any state (patented)
• Features three selectable modes
• Tail switch features integrated power indicator to display remaining battery power (patented)
• Anti-rolling design
• Two-way titanium steel clip included
• Toughened ultra-clear mineral glass with anti-scratch coating
• Constructed from aero grade aluminum alloy with HAIII military grade hard-anodized finish
• Waterproof in accordance with IPX-8 (two meters submersible)
• Impact resistant to 1.5 meters