Mini Solar Panel Powered Ventilator Fan Portable 5W 4 Inch Greenhouse Solar Exhaust Fan For Office OutdoorWhen connected to the solar panel, the fan can run; and might be used on my own by method of plugging into the computer&;s USB port. When linked to a photograph voltaic panel, the style the fan works relies on the sunlight. When the photo voltaic is irradiated to generate sizzling air, the fan instantly rotates to expend warmth in time, ventilate, save the effort of pulling wires, and it is safer and additional convenient. There isn't any rechargeable battery in the fan; if you want the fan to work at night, you need to use the flexibility pack. Specification: Solar panel chip: Polysilicon Solar panel power: 5W, 6V Panel size: 14/5 Mini fan: Size: four inches Power supply: USB plug, 5V USB cable length: 70cm/27 Material: Metal colour: black Package Contents: 1 x Solar Panel 1 x Fan Only the above kit content, different products aren't included. Note: Light shooting and varied displays may cause the colour of the thing in the photo a little assorted from the real thing. The measurement allowed error is +/- 1-3cm. When related to the solar panel, the fan can run; and can be used on my very own through plugging into the computer&;s USB port. When connected to a photo voltaic panel, the manner the fan works will depend on the sunlight. When the photo voltaic is irradiated to generate scorching air, the fan straight rotates to expend warmth in time, ventilate, save the hassle of pulling wires, and it is safer and extra convenient. There is not any rechargeable battery in the fan; if you would like the fan to work at night, you should utilize the flexibility pack. Specification: Solar panel chip: Polysilicon Solar panel power: 5W, 6V Panel size: 14/5 Mini fan: Size: four inches Power supply: USB plug, 5V USB cable length: 70cm/27 Material: Metal colour: black Package Contents: 1 x Solar Panel 1 x Fan Only the above package content, diverse merchandise aren't included. Note: Light shooting and diverse exhibits could cause the colour of the object in the photo a little diverse from the genuine thing. The size allowed error is +/- 1-3cm.