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. Item Type: Solar Panel Exhaust Fan Panel size: approx. 160 x 165mm / 6.3 x 6.5in Exhaust Fan Size: Approx. 120 x 120mm / 4.7 x 4.7in Output interface: USB plus DC Colour: black Material: ABS+monocrystalline silica gel Package Contents: 2 * Solar panel 2 * Exhaust fan Only the above package content, other products are not included. Note: Light 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.