Nitecore NU31 Headlamp, Grey- 550 Lumens, NCNU31

Dimensions: 2.45" x 1.81" x 1.4". Rechargeable. Water resistant. Impact resistant. SOS strobe. High performance LEDs. Modes: Turbo (550 lumens, 5h runtime); High 200 lumens, 8h runtime); Mid (60 lumens, 38h runtime); Low (50 lumens, 42h runtime); Ultralow (6 lumens, 147h runtime). Auxiliary red-Constant-On (5 lumens, 80h runtime); Slow Flashing (10 lumens, 50h runtime). 145m beam distance. Unibody optical lens system. Skin-friendly reflective headband. Dual button interface. Lockout mode. Requires (1) Lithium battery (included). Color: Gray.