1. Main voltage: 1.5V,2.5V,3V,6VDC 2.Typical applications: Automatic door-lock,projector,hairdressing equipment 3. Round Gearbox Dia:12mm 4. Torque: 300gf.cm~600gf.cm 5. Direction: CW,CCW 6. Our DC Planetary Gear Motor is with high torque,low speed,low noise ,good quality,long life,lower price ,fast delivery And the performance can be adjusted for customer. 500 pcs per box.