Usage Tips:Specification: 30A@12VDC; 15A@24VDC; 30A@125VAC; 15A@250VAC, this reverse polarity switch can be used under DC and AC circuits. Usage: The DC motor will reverse the motor direction with switch when hooked red to + VDC and Black to - VDC, and Blue to the Motor. It is configured for polarity reversing. Simply connect power and ground and two DC motor leads and the switch will reverse the motor direction. Switch Type: on off on Momentary. The switch lever will return to the middle off position when release your finger. Cut-out/hole size: 12mm. Widely Used: This polarity reversing switch replacement for most RVs, trailers, car, ATVs, UTVs boats etc. The switch is designed with jumper bars for polarity reversing, connecting power and ground, and two DC motor leads and the switch will reverse the motor direction. Colour:Photo Color Material:Plastic Package Contents: 2x switches 2x waterproof caps 8x cables Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.