AC/DC rechargeable evaporative cooling fan and ionizerModel: SF-3239Input voltage: AC100V, 110V, 120V, 127V, 220V, 230V, 240V 50Hz/60HzPower consumption: 60WFan speed: about 9.0m/sAir flow: about 450 cubic meters / hourIon density: about 3×106ion/cm3Water evaporation: 350ml/hrRemovable water tank capacity: 14.0LlitersCooling system: honeycomb cooling medium to achieve the best cooling effectFan mode: high/medium. /lowTimer control: 1-8 hoursRemote control distance: approx. 5 metersWind direction: swinging shuttersMotor: DC 12V brushless motorRechargeable and replaceable sealed lead-acid battery 12V/7.7AhBattery charging time: 12 hoursBattery runtime:High speed with cooling function-about 2.8 hoursMedium speed with cooling function-about 4.5 hoursLow speed with cooling function-about 6.0 hours