mini air pump used for many different area. Voltage rated: DC 12V Voltage operated: DC9.0V-DC13.0V Current rated: <= 830MA Initiatian voltage: DC9.0V Initiatian time: <=4S/220mmHg Plux: >=9LPM Weight: 300g Operational temperature range: 5c~30c Operational humidity range: 30~85%RH Lifetime: >=700h(continuous work) Noise: <=60dB(A) Diameter: 6.8mm Outer dimension: 60mmX121mm air pump