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 , IP65 waterproof can adapt to harsh outdoor environment, improve durability. the odor: This portable exhaust fan can help you maintain the indoor air flow effectively, keeping the air clean can help you 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. Colour:black Material:ABS Package Contents: 1 x Solar panel 1 x Exhaust 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.