Features: High quality CREE LED ensures bright light output Can be used as headlight or bycycle headlamp Waterproof that can be used in the rainy days Energy-saving that offers long runtime 4 Switch Modes: High-mid-low-strobe Specifications: LED Type: 1*CREE-T6 Material: Aviation Aluminum Light Color: White Power Supply: 4*18650 battery (two serial and two parallel) Luminous Flux: 800lm Beam Distance: 200m 4 Switch Modes: High-mid-low-strobe Run Time: 3 hours(Strong Brightness), 4 hours(Middle Brightness), 5 hours(Low Brightness), 3 hours(Strobe) Dimension: 3.5cm(head diameter), 3.5cm (body diameter), 5cm (body length) Waterproof Class: IPX-65 Standard Switch Type: Tail-cap Lens Type: Coated glass lens Relfector Cup: Smooth Refector Cup SKU: C2LE011DO Package Includes: 1 * LED Bike Light 4 * 18650 Battery (2 serial and 2 parallel) 2 * O-Style Circle 1 * EU Plug Charger 1 * Head Belt