... 38*62mmRemark: without/with brush1.Low power consumption: With low current, power and consumption, use 12V AC; 2.Sophisticated design: With small size, ... the service life is beyond 3000 hours; 4.Oil-free: With oil-free design, the output air and its transfer are ... 6.Stability: Continuous Running for 24 hours, and No Interruption with Much Moistures 7.Easy Maintenance: No Adding Lubricated Oil, ...