Solar Power: The exhaust fan uses the solar panel as the power source, equipped with a standard USB voltage regulator to keep the output, it can be used outdoors anytime, anywhere, convenient and fast. High conversion efficiency: The efficiency of single crystal solar cells is up to 20%. Outdoor solar panels can effectively convert sunlight into electricity. IP65 Waterproof: Solar panel adopts epoxy resin laminated surface, IP65 waterproof can adapt to harsh outdoor environment, improve durability. Eliminate the odor: This portable exhaust fan can help you maintain the indoor air flow effectively, keeping the air clean can help you eliminate the smell of pets, tobacco, etc. Wide range of applications: Suitable for kitchens, greenhouses, pet houses, chicken houses, tree houses and RV, etc., maintaining comfortable temperature levels. Solar panel power: 20W Solar panel working voltage: 12V Solar panel size: 360*330*3mm Output port: Female DC5521 DC cable length: 150cm Fan power: 3W*2 Fan size: 30.1x16x3.6cm Fan air volume: 152.6CFM Fan speed: 2200RPM±10% Static Pressure: 2.7mmH2O Note: Due to different production batches, there may be slight differences in products. Colour:Black Material:Monocrystalline silicon Package Contents: 1 x 20W Solar Panel 1 x Dual Fan Only the above package content, other products are not included. Note: Light reflection 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.