The module can be driven by two dc motors at the same time or one phase 4 line 2 type stepping motor Is provided with a fixed mounting holes, diameter: 3mm Each channel has a continuous output current 800 ma PCB board size: 2.8cm * 2.1cm ultra-small size, suitable for assembly Suitable Motor range: between motor operating voltage 2.5v-12V, the maximum operating current of 0.8A, the current smart car voltage and current market are within this range.