12V DC On and Off Control with Polarity Change

This is a 12V DC momentary mode On and Off relay with polarity switch by pressing the other button when the receiver is on OFF mode. Both left and right buttons control ON and OFF for one polarity, and each button will change the polarity from the previous polarity when the receiver is set at OFF mode.The package contains one receiver and two key-chain style handsets.

Use Guide:
Both buttons control ON and OFF. The left button controls the initial ON and OFF at the initial polarity, the right button changes the polarity to the opposite and turns it ON by pressing it once when the initial polarity is set at OFF. The left button can switch it back to the initial polarity again when the other polarity is at the OFF mode.

Wiring Instruction:
The two WHITE wires are 12V DC output. Either of the wires will serve as ground and light wire depends on which polarity is chosen. The BLUE wire is antenna wire. The RED and BLACK wires are 12V DC wires. The two white wires are the 12 V DC output - since this relay unit switches polarity, either wire can be the ground or the live wire depending on the status of the unit. The blue wire is the antenna wire. The red wire is the 12 V DC input wire and the black wire is the input power ground wire.