Max 800 lumen output with included 1900mAh rechargeable Li-Ion battery pack or three AAA batteries Ten lighting modes with four levels of cool white light, four levels of warm white light, red light, and red SOS Two-way SPORT Headband Fit System for a secure and comfortable fit The Fenix HL18R-T V2.0 Rechargeable Headlamp is built for those who refuse to slow down. With a powerful 800 maximum lumens and a 410 feet (125 meters) beam distance, ita**s perfect for early morning jogs, overnight excursions, or even your next DIY project. Choose between white, warm white, and red light modes with the easy-to-use top dual buttons, allowing quick and precise mode changes. Lightweight enough to be a running headlamp, the HL18R-T is also equipped with a lockout slide switch to prevent accidental activation and a two-way SPORT fit headband system with an easy-to-adjust rotary dial for a secure, comfortable fit. Recharge with USB-C or swap in 3x AAA batteries when needed.