This fan is designed for versatility and can be powered by a 5V solar panel or a USB power adapter, making it a universally solution for various applications Our exhaust fan adopts a 3000RPM motor, 3-speed speed control with switches, air volumes of 50CFM, and can be used with a 75mm diameter air duct achieving efficient exhaust and allowing you to powerful ventilation effect Very suitable for use in campers, greenhouses, pet houses, and bathrooms, it effectively removes and maintains a comfortable environment This fan is crafted from ABS and designed for long-term use, providing a detachable design for easy cleaning and maintenance to ensures long-time This fan is perfect for enthusiasts, hobbyists, and professional who use printers or work in electronic repair rooms, providing ventilation, Manufacturer: APGLSXY