5.5x2.1mm female interfaces input, can be powered by a 12V solar panel, power adapter, input from the bottom circular tube, and output from the middle hole Very suitable for campers owners, greenhouse growers, warehouse managers, and homeowners seeking user-friendly airflows solution Very suitable for kitchens, pet houses, bathrooms, security kiosks, and agricultural buildings that require heat dissipation without electricity 12V0.3A exhaust fan, suitable for 110mm / 160mm pipeline sunrooms container outdoor bathroom strong ventilation fan Adopting a brushless motor with a speed of 2500RPM, 3.6W, and air volumes of 430CFM, it can achieve sturdy, and powerful ventilation in various environments, Manufacturer: Oxxggkao