Energy-efficient and efficient: The pure copper motor of this extractor ventilation fan ensures exceptional durability, energy efficiency, and high performance. Boosted impeller fan blade for high-speed: The specially designed boosted impeller fan blade of the exhaust air blower maintains its shape even at high speeds, ensuring consistent and efficient airflow. Premium ABS fire-resistant material for durability: Crafted from high-quality ABS fire-resistant material, this exhaust fan is built to withstand daily wear and tear. Design with check valve: Equipped with a check valve design. The check valve automatically opens and closes with the wind, preventing unwanted backflow from entering your living space. Energy-saving: The inclusion of a solar panel in this fan allows for energy-saving and environmentally conscious usage. Harnessing the power of the sun, this fan reduces reliance on traditional electrical sources, resulting in lower energy consumption and a smaller carbon footprint. Exhaust fan power: 4.8W Solar panel power: 8W DC voltage: 12V Motor speed: 2100 rpm Noise: 40 dB Current: 0.4A Maximum power current: 0.66A Open circuit voltage: 14.4V Short circuit current: 0.73A Color: A: Black / B: White Material: ABS Size: 6 Inch / 4 Inch Package Contents: 1 x Exhaust Ventilation Fan 1 x Solar Panel 1 x Solar Panel Bracket 1 Pack x Mounting Screws 1 x English Instruction Manual Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.