Eddwiin Solar Panel, Small Solar Charger Panel, Portable Solar Panel Cooling Fan, Eco-friendly for Greenhouse Dog Chicken House

Way of use---The fan runs when plugged to the solar panel. And it can be used alone by plugged into computer USB port When inserting the battery board---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 Night use introduction---There is no rechargeable battery in the fan. If you need the fan works at night, you can use a power bank Application---The solar panel can be used separately as a power bank to charge your mobile phone Portable and lightweight---suitable for traveling, self-driving tour, camping, hiking and other kinds of outdoor activities.