Descriptions:Solar panel exhaust fans can effectively convert sunlight into electricity. Clean energy, long life, and energy-saving. The efficiency of monocrystalline solar cells is as high as 20%.Specifications:Project Type: Solar Panel Exhaust FanMaterial: Monocrystalline SiliconColor as ShownPower Shown: 10WUSB Regulated Output: 5V 1000maPanel Size: Approx. 110 x 80 mm / 4.33 x 3.15 inchesExhaust Fan Dimensions: Approx. 120 x 120 x 25 mm / 4.7 x 4.7 x 1.0 inchesPacking List:Solar Panel Exhaust Fan*1Note: Due to the shooting environment, lighting, equipment, display and other factors will produce a certain color difference, it is normal.