1. Cranking for power.2. Cranking to charge mobilephone quickly. 3. High-luminance : 1W LED for lighting.4. Electronic switch function: 2 LEDs on/ 1W LED on/1W LED flashes.5. External electric source of 6V to charge the inside battery, the charging time is 8 hours. There is charging indicator.6. Waterproof under 10m water. Features:1. The Max. brightness is >250000 Mcd.2. High current to charge mobilephone.3. Sealed structure, waterproof under 10m water, you can also crank it under water.4. Long lifespan.5. Low noise.6. Shock-proof and crashproof.7. Single socket for two way charging function
