CAT EYE LED headlight VOLT800 USB rechargeable HL-EL471RC

Size: 116×31.2×43.2mm Weight: 140g (body + battery only) Battery used: Lithium ion rechargeable battery (3.6V-3400mAh) Usage time High: Approximately 2 hours (800 lumens) / Middle: Approximately 3.5 hours (400 lumens) / Low: Approximately 8 hours (200 lumens) / Daytime hyper constant: Approximately 7.5 hours / Flashing: Approximately 100 hours Charging time: about 5-9 hours