Features 1、Adopted of high quality electronic components, and accuracy process, ensure for the durability 2、Easy to operate with push buttons 3、The product has motor start mode setting and memory function 4、Small body and it can provide stable performance 5、The working voltage is DC6-28V and the speed range is 0%-100% Specification Item Type: Module Working Voltage: DC 6-28V Maximum Current: 2A Speed Range: 0%-100% PWM Frequency: 21khz Start mode can be selected by bridge and memory can be turned on Start Mode: 1, power on direct start; 2, power on button start Memory Mode: After the memory mode is turned on, the next time the motor starts, it will automatically follow the speed of the last shutdown. Size: Approx. 30 x 50 x 15mm / 1.2 x 2 x 0.6in Package List 1 x Module