GENTOS LED USB 800 13 Hours of Operational Run Rear View Requires Rechargeable Battery or 4 AA Batteries G Series GH-300RG Headlamp, Rechargeable,

Dimensions (approx.): Head: 65mm W x 62mm D x 60.5mm H; Battery box: 105.8mm W x 43.3mm D x 70.1mm H; Weight: Approx. 371g (including batteries) Set contents and accessories: Main unit, non-slip headband, silicone band (4 buckles), USB Type-C cable (50cm), dedicated AC adapter (5V/2A), helmet holders (4), dedicated rechargeable battery (built-in) Brightness: Max/1500 lumens, High/800 lumens, Mid/280 lumens, Eco/60 lumens; Battery: Rechargeable battery or 4 AA alkaline batteries (sold separately) Actual lighting duration: Head unit (Max/8.5 hours, High/13 hours, Mid/20 hours, Eco/96 hours), Rear recognition light (On/560 hours, Flashing/560 hours) Features: 2m drop resistance, dustproof and water resistant (IP66 compliant), maximum beam distance: approximately 255m