Features: Experience efficient cooling and ventilation with this 10W solars powered double fan systems, designed to expels hot air and circulate freshness airflows, ideal for chicken coops, greenhouses, and pet shelters. Waterproofed coated motors, rustproofed ABS frames, and double safety meshes guards, this foldable USB compatible solar panel fan delivers 200 CFM airflows while resisting weather damage and animal interferences. Perfect for pet owners, greenhouse growers, and outdoor enthusiasts needing temperature control in sheds, attics, kennels, or small agricultural structures without electrical wiring. Optimize airflows in sunlit spaces like garden greenhouses, backyard chicken coops, or workshop sheds—fan speed adjusts automatically based on solar intensity, operating solely on energy with zeros battery dependency. Engineered for durability, its weather resistant solar panel and reinforced plastic housing ensures years of simple operations, combining energy efficiency with robust safety features for outdoor cooling solution. Specifications: Dimension:13.7×5.8cm/5.39×2.28in 19×22cm/7.48×8.66in Component:silicon Package Includes: 1pc Foldable Solar Panel Ventilation Fan note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.