Technical parameters: Name: USB three-in-one multi-function LED camping fan light Power supply: 3-in-1 power supply mode: a three AA dry battery power supply; b three AA nickel-metal hydride rechargeable battery power supply; c USB interface direct power supply (as long as there is a power supply with USB interface can be directly powered); three power supply modes can be used interchangeably Note: When using USB power supply, please be sure to remove the dry battery to avoid damage to the battery and product components. When using the 5th nickel-metal hydride rechargeable battery, please do not wait until the power is completely discharged, and then keep more than 10% of the power. Replenish the power, otherwise the battery can not be charged properly, this is not the function of the product itself, the disadvantage of the nickel-metal hydride battery illumination source: 2835 patch (12 in total) Voltage: 4.5V Lighting power: 1.5W motor speed: about 6000 rpm net weight: 0.4kg Life time: AA Duracell alkaline battery single light: 5 hours or so; fan light at the same time: 3-4 hours Advantages: Thin size design for easy outdoor carrying Three-dimensional design of the air outlet, greatly reducing the wind resistance, increasing the wind, reducing noise and energy consumption Anti-glare material light sheet design, effectively protect the eyes The illuminating lamp is illuminated by a full circle, which makes the leisure space brighter