... : AC100V-127V, AC220V, AC230-240V 50\60Hz optionalInput Current: <1.5mAPower: <1WOutput Voltage: -3KV ~ -6KVFrequency: 1.5 +/- 0.5 KHzRelease ... Anion Density: 2~5 x 1000000 pcs/cm3Remain Ozone Density: <0.02ppmCertification available: UL(E252411), TUV, CQC, ROHS.