Feature: 1. This is a compact reverse polarity switch module that can be used to change the polarity of output terminals 5 and 6. 2. The most common use is to change the direction of a DC motor. 3. Once power is supplied to the control voltage (terminals 1 and 2), the relay is activated and the output terminals of 5 and 6 will change polarity. 4. The product has strong safety performance and high cost performance. 5. Made of quality material, safe and practical, durable for use. Specification: Item Type: Relay Module Polarity Reversal Switch Board Description: DR21A01 5VDC 1 channel DPDT relay board Working Voltage: DC 5V Working Current (Relay Connected): 35MA Standby Current (Relay Closed): <1MA Input Control Signal Voltage: 0V-0.6V Low Level (Relay Closed), 0.6V-2.4V (Unknown State). 2.4V-24V High State (Relay is ON). Input Control Signal High Current: 2.4V: 0.15MA 5V: 0.5MA 12V: 1.2MA 20V: 2MA Relay Load: 1A 125V AC; 2A 30V DC . Package List: 1 x Relay Module Polarity Reversal Switch Board