1.Cranking for power generation. 2.Lighting models: low-brightness, high-brightness, red LED lighting, SOS flashing. 3.Charge the product with external 5 V power source, charge and fully charged indication. 4.Rainproof:IP44. 5.Telescopic LED lighting. 6.Luminous. 7.Hanging handle. Main Technical Parameters: Item Parameter The Max. Luminous Flux of high-brightness when fully charged ≥22Lm The Max. Luminous Flux of low-brightness when fully charged ≥7Lm The Max. Luminous Flux of red LED lighting when fully charged ≥0.4Lm High-brightness lighting time after 1 minute cranking ≥9min Low-brightness lighting time after 1 minute cranking ≥35min Red LEDs lighting time after 1 minute cranking ≥9min Red LEDs flashing time after 1minutes cranking ≥23min High-brightness lighting time after being fully charged ≥2hr Low-brightness lighting time after being fully charged ≥6.5hr. Red LEDs lighting time after being fully charged ≥4.5hr Red LEDs flashing time after being fully charged ≥11hr. Specification of charge connector DC connector, DIA3.5*DIA1.35 Input voltage 5-5.2V 750Ma Fully charged time by DC adapter ≤5hr. Fully charged time by computer USB port ≤6hr. Switch 10000 Times The whole unit 5 Years The plastic part 5 Years Specification of built-in battery 300mah/3.6V Motor 5W led 0.5W Size and Weight: 1.Size: Φ62mm*131mm 2.Weight:191.2g