Cranking for power generation Charges mobile phones Connect with fixed bracket can be used as bicycle light Battery has self-protection function High efficiency: 1 minute cranking can make 3 LEDs light for more than 10 minutes High luminance: maximum brightness is 60,000mcd Perfect charging effect: 3 minutes charging can make cell phone talk for 2 to 8 minutes Mini size, convenient to carry Ergonomic design with many rubber pieces makes it comfortable to use Can use as both flashlight and bicycle light, practicable and well-suited Charge for mobile phone: Output voltage: 5.8 or 6.4V Maximum output current: ≥400mA Maximum output power: 2.5W Used as flashlight: Maximum brightness: 60,000mcd 1 minute cranking can make 3 LEDs light for more than 10 minutes Lifespan: Whole unit: >5 years Charging plug: >5,000 times Plastic part: >5 years