1.28~48 rpm Gear Motor have High efficiency. 2.Strong power. 3.Widely use in construction industrial and home. The specification of AC Single Phase 28 ~48 rpm Gear Motor as below: 1.Voltage:230V, 2.Power: 500W, 3.Input speed 1400RPM,4.Output speed 28~48 rpm. (this can be adjust according with your requirements) AC single phase 28~48 rpm Gear Motor