Feature: 1. SOLAR FAN: 50W solar panel with dual fans, exhausts air efficiently and cools down quickly, providing a comfortable environment for your caravan, greenhouse, pets and home. 2. POWER STORAGE BOX: Solar panel fan kit comes with a battery box, even in the absence of sunlight, it can be connected to the battery box for normal use (batteries not included), suitable for all day. 3. EASY TO USE: the fan is powered by solar converted power, point the solar panel to the sun and it will work well, when the sun goes down, the fan will turn off automatically. 4. EXHAUST FAN: Dual exhaust fan can exhaust hot air and let cold air in, effectively reduce indoor temperature and humidity, keep the air fresher. 5. MULTIFUNCTIONAL DESIGN: Solar powered fan is suitable for a variety of places, such as RVs, greenhouses, pet rooms and homes, providing a comfortable environment for you and your pets. Specification: Item Type: Solar Panel Fan Kit Material: ABS Gross Weight: 680g/1.5lb Solar Panel Power: 50W (without Power Storage Function) Solar Panel Size: Approx. 32x14.5cm / 12.6x5.7in Fan Size: Approx. 28x14.5x3cm / 11.0x5.7x1.2in Power Storage Box: 3 x 18650 Batteries (Shipped Without Batteries) Suitable for A Variety of Places, Such As Caravan, Greenhouse, Pet Room and Home. Package List: 1 x Solar Panel1 x Dual Exhaust Fans1 x Power Storage Box1 x Instruction Manual2 x Connection Cable Note: All data are measured manually, and there are certain errors in the measurement results.