This is exactly what I needed. I only needed one, but it's good to have a spare. I will only update this review if there are any issues with the reliability of the switches. I used this item to replace the motor on my boat's exhaust fan. I modified the original fan to run off the boat's 12 volt power system (instead of my own isolated, single solar powered C-cell battery). I connected it to reverse (input and output) with this switch and it works fine.