Nitecore P20i UV Dual Output LED Flashlight, Max 1800 Lumens, CREE XP-L2 V6, Powered by 1 x 21700 battery.

Features:
The White light utilizes a luminus SST-40-W LED with a max output of 1800 Lumens
The UV light utilizes 4x UV LEDs (320mW, wavelength 365 nm)
An optical system combined with crystal coating and "Precision Digital Optics Technology" (PDOT)
Highly efficient constant current circuit provide a stable output for up to 50 hours
Dual tail swithces enable intuitive operations for tactical applications
Strobe ready technology to enable a quick access to STROBE mode (Patent No. ZL201320545349.4)
Strobe mode uses randomly changing frequencies for stronger dizzying effects
Tactical mode and daily mode available
Intelligent Li-ion battery charging circuit with a USB-C Port
Nitecore 21700 Li-ion battery Included (NL2140i 4400mAh)
A power indicator beside the charging port indicates the remaining battery power (Patent No. ZL201220057767.4)
Strike bezel uses a high strength silicon nitride ceramics to enable excellent glass breaking performance
Optical lenses with double-sided scratch resistant coating
Constructed with aero grade aluminum alloy
HA III Military grade-hard anodized finish
Waterproof and dust proof rating in accordance to IP68 (2 meters submersible)
Impact resistant to 2 meters

Specifications:
LED Luminus SST-40-W LED
UV light utilizes 4x UV LEDs (320mW, wavelength 365 nm)
Maximum Brightness: 1800 lumen
Peak Beam Distance: 375 yards
Peak Beam Intensity: 29500 cd
Impact Resistance: 1m
Dimensions: L-5.61"xW-1.25"xH-1.25"
Weight: 4.37oz

Included in the Box
P20i UV
NL2140i 4000mAh battery
CR123 battery magazine
NTH20 holster
USB-C charging cable
lanyard
clip
spare O-ring