High Efficiency Solar Power: Powered by a 20W monocrystalline solar panel with excellent photoelectric conversion, this fan provides stable energy supply in sunny conditions without external power, helping reduce energy costs Wide Airflows Coverage: The unique circular fan ensures broader air circulation, significantly improving ventilation in chicken coops, pet houses, and storage rooms for enhanced comfortable Quiet & Durability Brushless Motor: Equipped with a brushless motor for smooth, low noise operations, extending the fan ' s lifespans while reducing maintenance needs Easy Installation & Weatherproof: Simple setup requires without special tool, while waterproof construction ensures reliability in humid or rainy conditions Multi Scenario Versatility: Ideal for both home use and outdoor activities like camping, offering flexible and ventilation solution wherever needed, Manufacturer: Whoasyst