CAT EYE Headlight SYNC CORE Light Bicycle HL-NW100RC

Size: 35.9x106.5x46.5 mm Weight: 94g Battery used: Lithium ion rechargeable battery (3.6V-2200mAh) Usage time High: Approximately 2 hours (500 lumens) Middle: Approximately 9 hours (150 lumens) Low: Approximately 15 hours (100 lumens) Daytime hyper constant: Approximately 18 hours (500 lumens/100 lumens) Flashing: Approximately 130 hours ( 100 lumens) Charging time: about 3-6 hours