... way, it keeps indoor air clean and healthy. 3. With an adapter, it can convert the high voltage to DC12 Voltage, ... easily. How to use: First connect the unit to an adapter with electricity input, then press the round button, the blue light ... 20 pcs/ctn SpecificationModel No.AT88F-02Rating VoltageDC12V input (with an adapter)Power consumption10WDimensionsÏ200mm x 165 mmNegative ions output5x 106 / ...