Portable solar panel with high conversion rate and high efficiency output, which can use this solar panel to charge the fan, also the fan can used alone by the USB port. This is suitable for outdoor travel, home, office, etc. Features: The 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. There is no rechargeable battery in the fan, if you need the fan works at night, you can use a power bank. Portable, small, lightweight, durability, fine quality. With a USB solar panel which is energy-saving and having high conversion rate and high efficiency output. Specifications: Working Voltage: 6V Working Current: 0-500mA Power: 3W Port: USB Application: Charger for power bank, MP3 and eletronic products. Rotary Vane Quantity: 4 Wind Type: Natural Wind, Sleep Wind, Prevailing Wind Solar Panel Size: 145 * 145mm / 5.71 * 5.71in Solar Panel Line Length: about 465mm / 18.31in Fan Line Length: 670mm / 26.38in Fan Size: 150 * 140 * 90mm / 5.91 * 5.51 * 3.54in Package Size: 155 * 155 * 85mm / 6.10 * 6.10 * 3.35in Item Weight: 330g / 11.64ounce Package Weight: 386g / 13.62ounce 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 +/- 10-30mm. Package List: 1 * Solar Panel Fan