SKU Nitecore MT2C PRO LED NiteLab UHi 20 LED Brightness Using the NITECORE NL1836R Li-ion Battery: High: 1,800 lumens Low: 50 lumens Using 2x RCR123 Battery: High: 800 lumens Low: 50 lumens Using 2x CR123 Battery: High: 800 lumens Low: 50 lumens Duration Using the NITECORE NL1836R Li-ion Battery: High: 2 hours 15 mins Low: 28 hours Using 2x RCR123 Battery: High: 1 hour 30 mins Low: 12 hours Using 2x CR123 Battery: High: 2 hours 45 mins Low: 20 hours Beam distance Using the NITECORE NL1836R Li-ion Battery: High: 520m Low: 95m Using 2x RCR123 Battery: High: 350m Low: 95m Using 2x CR123 Battery: High: 350m Low: 95m Beam Intensity Using the NITECORE NL1836R Li-ion Battery: High: 67,000 cd Low: 2,200 cd Using 2x RCR123 Battery: High: 29,500 cd Low: 2,200 cd Using 2x CR123 Battery: High: 29,500 cd Low: 2,200 cd Power Supply Nitecore NL1836R 3,600 mAh 18650 rechargeable Li-ion Battery (Included), or 2x CR123 Battery (NOT included), or 2x RCR123 Battery (NOT included) Waterproof Level IP68, 2m (Waterproof and Submersible) Size Length: 117.5 mm Head: Ø26.8 mm Weight 64g Highlights Utilizes a UHi 20 LED with a max output of 1,800 lumens Max peak beam intensity of 67,000cd and max throw of 520 meters An optical system combined with crystal coating and "Precision Digital Optics Technology" (PDOT) A single tail switch contrals 2 brightness levels Powered by an 18650 high capacity Li-ion battery while compatible with CR123/RCR123 batteries Includes a NITECORE 18650 rechargeable Li-ion battery (NL1836R 3,600mAh) with a built-in USB-C charging port, offering a runtime up to 28 hours Highly efficient constant current circuit provides a stable output Incorporated Advanced Temperature Regulation (ATR) module Electronic reverse polarity protection Optical lenses with double-sided scratch resistant coating Constructed from aero grade aluminum alloy HA III military grade hard-anodized finish Tail stand capability Stainless steel clip included Waterproof and dustproof rating in accordance with IP68 (2m submersible) Impact resistant to 2 meters Manual Contents Nitecore MT2C PRO USB-C Charging Cable Lanyard Spare O-ring NITECORE 18650 Rechargeable Li-ion Battery (NL1836R 3,600mAh)