With 400 lumens, white and red lighting modes, IP67 submersible waterproof rating and a moisture-wicking band this headband offers practicality with comfort. Featuring quick charging just 8 minutes adds a full hour of brightness. USB-C Fast Charging 3D SlimFit Construction Completely waterproof, IP67 Lumens: 400 Lm Weight: 69 g Battery: 1,640 mAh, rechargeable via USB-C. 8 minutes charge = 1 hour of light Burn time: 200 LO/6 HI Water resistance: IP67