Description High Quality 4 Inch Cooling Ventilation Fan USB Solar Powered Panel Iron Fan For Home Office Outdoor Traveling Fishing|FansThe fan runs when plugged to the solar panel;And it can be used alone by plugged into computer USB port.When plugged to the solar panel, how the fan works depends on the sunlight.When the sunlight is strong, the fan works fast.When the sunshine is not strong enough, the fan may work low or even does not work.There is no rechargeable battery in the fan;If you need the fan works at night, you can use a powerbank.Solar panelPower: 3W,6VPanel Size: 14.5cm x14.5cmApplication: Charger for powerbank, MP3 and eletronic products.Feature: WaterproofMini FanSize: 4 inchMaterial: IronPower: USB Plug 5vUSB cable length: 120cmColor: BlackPackage Contents: 1 x Solar panel Iron FanOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.