Type...LED light Brightness (lumens)...300-499lm Features...Rechargeable Light type...Headlight Source...LED ・Size (approx.): Head unit/Width 59.3 x Depth 37.2 x Height 43.2mm, Battery box/Width 92.1 x Depth 32.5 x Height 59.2mm, Body weight: approx. 176g ・Set contents/Accessories: Main unit, non-slip head band, helmet holder x 4, Micro USB cable (50cm), dedicated magnetic charging cable, magnetic cap, dedicated AC adapter (5V / 1A), dedicated rechargeable battery (built-in) ・Brightness: High/450 lumens, Mid/240 lumens, Eco/50 lumens, Batteries used: Dedicated rechargeable battery or AAA alkaline batteries x 4 (sold separately) ・Practical lighting time: High/6 hours, Mid/13 hours, Eco/52 hours, Rear recognition light on/190 hours, Rear recognition light flashing/190 hours ・Functions: 2m drop resistance, dustproof and waterproof (IP66 compliant), maximum irradiation distance: approx. 61m