KNACRO 12v Reversible Motor Control Board Delay Timer Relay/programmable DC12V 10A Positive Inversion The Motor Control Board Divide both sides of the circuit board, the front is the main chip components, digital control and buttons. The back of the relay, terminal, electrolytic capacitors, and user-friendly installation panel. Line terminals are used KF7.62 terminals, screw terminal crimping large, easy wiring. After the set parameters of power and can never remember, input and output optocoupler isolation, enhanced anti-jamming capability power. DC motor can be controlled between 3V-14V.&lt; Adjusting the delay time: 0.1 seconds to 99.9 seconds, one second to 999 seconds, 1 minute to 999 minutes.Users can be adjusted.&lt;