1. Built-in thermal protection device. When the motor overheats, the contact breaks to protect the power supply. 2. Shaded pole motor, ventilator motor. 3. It can operate stably in an environment ranging from -40°C to 80°C. The thickened blades make the operation more stable. 4. The motor features high rotational speed, sufficient air volume and low noise. 5. It uses high-quality copper enameled wire, is corrosion-resistant and has an IPX2 waterproof rating. 6. Type: Duct fan. 7. Note: The distance between the fan and the ceiling should be greater than 5cm. 8. Model: 6 inches. 9. Rated voltage, rated frequency, rated power, air volume, decibel: - For 6 inches: 220V; 50HZ; 18W; 320m³/h; 35 decibels. 10. Color: White. 11. Material: ABS. 12. Dimensions (blade base diameter × motor base diameter × height × motor part height): - For 6 inches: 14.9×15.4×10.6cm×4.8cm. 13. Packaging contents: - 1 exhaust fan. 14. Only the above packaging contents are included, and other items are not included. 15. Note: Light reflection and different monitors may cause slight differences between the color of the item and the actual object. A measurement error of ±1 - 3cm is allowed.