Super Bright 4000 Lumens 3pcs LED Adjustable Head Torch/Headlamp,Waterproof Powerful Rechargeable Headlight for Camping, Fishing, Cycling, Running ,Walking, Biking (2pcs 18650 Batteries Included) 3pcs High Quality Super Bright LED Bulb, Max Output 4000 Lumens,LED Lifespan Over 100,000 Hours. Power Supplied by 2x 18650 Batteries (Included), 5 Hours Working Time When Fully Charged. Charged by Wall/Car Charger or USB Cable (All Included), for More Convenient Charging. 4 Modes: Central LED On/ Two Outer LEDs On/ Three LEDs On/ Three LEDs Strobe . Living Waterproof, Not for Diving or Swimming;90 degree Aadjustable Angle;Elastic head band .