AC/DC rechargeable evaporative cooling fan and ionizerModel: SF-3198Input voltage: AC100V, 110V, 120V, 127V, 220V, 230V, 240V 50Hz/60HzPower consumption: 50WFan speed: about 8.2m/sAir flow: about 300 cubic meters / hourIon density: about 3×106ion/cm3Water evaporation capacity: 300ml/hrRemovable water tank capacity: 7.5LlitersCooling 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 3.2 hoursMedium speed with cooling function-about 5.5 hoursLow speed with cooling function-about 7.5 hours