NOT short M Pads on PCB(0:Switch OFF;1 Switch ON) It can drive 3V/5V/12V relay/LED and so on. Otherwise deal is final. All products are quality checked. We will be happy to resolve any issues you may have in a cordial and friendly manner.
Mini 12V RF Wireless Remote Switch Controller Dimmer for LED Strip Light
Mini 12V RF Wireless Remote Switch Controller Dimmer for LED Strip Light CF
2* DC12V-36V Battery Low Voltage Cut Off On Switch Controller Protection Module
5 x NE555P DIP8 Single Bipolar Timer IC Classic 555 Timer Chip Through Hole
Continuously Variable Speed Switch; Temperature and Pressure Controller
20A PWM DC Motor Speed Controller 12V 24V 36V 48V /w Potentiometer Knob Switch