Keychain Keychain with Mini Solar and Dynamo Flashlight, Long Lifespan, 8 to 10lm Maximum Luminous Flux Key Specifications/Special Features: Features: 2 LEDs lighting Charged by dim light solar panel Used as a key chain Cranking for power generation Controlled by slide switch Long lifespan Handsome appearance, mini size and convenient to use Main technical parameters: Maximum luminous flux: 8 to 10lm Lighting time: After 1 minute cranking: 3 to 5 minutes After 3 minutes cranking: 5 to 7 minutes After being charged fully: 30 to 50 minutes Fully charged time by hand crank: 50 to 60 minutes Lighting time after being charged by light: 500Lux LED lifespan: 50,000 hours Switch lifespan: 10,000 times Plastic part lifespan: 5 years