... systems and DC12V, AC220V three intelligent power conversion, liquid crystal display, large air circulation, and all kinds of ... comfortable, and effective protection for your health. 2: LCD liquid crystal display temperature, humidity, air quality levels, three backlight: ... lead times. 8: Technical parameters: Power requirements: polymer lithium battery solar 5V600mA 3.8V1500 mA DC12V AC220V Suitable ...