The KO-03 uses an included 21700 5100mAh battery to power the Luminus SST-70 LED to shoot up to 2400 lumens out to 326 meters. The USB-C charging port is opposite the power switch.

Features:

• Specially designed for camping, every day carry, adventure and searching
• Uses one Luminus SST-70 with lifespan of 50,000 hours
• Extremely high-performance outdoor flashlight with max output up to 2400 Lumens driven by one high-rate 21700 power battery
• Compatible with one 20700 battery, one 18650 battery or two CR123A batteries
• Portable power bank function, provides for occasional needs
• Use brightness levels and a strobe available with memory function
• Convenient built-in USB-C charging port
• Intelligent temperature control system to maximize lifespan of LED
• Toughened ultra-clear mineral glass with anti-reflective coating
• Constructed from aero-grade aluminum alloy
• Military-grade HAIII hard-anodized
• Magnetic tailcap with stand capability
• Instant strobe with double-press side switch

Specifications:

• Output modes:
• Turbo: 2400 lumens/3.5hr
• High: 1100 lumens/4.5hr
• Medium: 300 lumens/8.8hr
• Low: 65 lumens/37hr
• Eco: 6 lumens/350hr
• Strobe
• Max Beam Intensity: 26677cd
• Max Beam Distance: 326m
• Waterproof rating: IPX8 (2 meters underwater)
• Impact resistance: 1m
• Dimensions:
• Length: 134.8mm
• Head Diam: 34.3mm
• Tail Diam: 25.8mm
• Weight: 123g (Without battery)