อุปกรณ์ควบคุมพัดลมระบายอากาศโซล่าเซลล์ Hybrid AC/DC

此产品声称可以帮助降低屋顶温度3-5摄氏度，提高太阳能风扇的效率，并全天候运行。用户可以使用开关控制风扇。

• The description claims that it can reduce roof temperature by 3-5 degrees Celsius.
• The description claims that it improves the efficiency of solar panel fans.
• The description claims that the solar panel fans operate 24 hours a day.
• The description claims that it controls fan operation with a switch.