Flashlight Mini LED Flashlight, Charged by Hand Cranking, Suitable for Electronic Gift Key Specifications/Special Features: Functions: High-luminance lighting Cranking for power generating and accumulating in high-efficiency Features: Cranking to generate power, no external batteries needed, rechargeable power-storage: Green, environmentally friendly, economical and safe Unique spotlight system, good for short and middle range distance lighting Perfect combination of the light weight and high efficiency. Low noise and long lifespan Professional ergonomic design of small size and comfortable to hold Main technical parameters: Maximum luminous flux: ≥ 10lm Maximum brightness: ≥ 40 000mcd Lighting time after 1 minute cranking: 25 minutes Lighting time after fully charged: 2.5 hours Main parts life-span: Switch lifetime: &38805; 5000 times The whole unit lifetime: ≥ 5 years Plastic part lifetime: ≥ 5 years Specification: Size of this unit: about 95 x 51 x 38mm Weight of this unit: about 82g The built-in battery specification: 40mAh, 3.6V