The switch you purchased will work just fine for turning your Spektrum equipment on and off. For turning on the receiver only the positive and negative leads (black and red on your switch, red and brown on the Spektrum wiring) is used. However, if you need to bind the receiver the switch you have will not work. In order for that to work you will need a Spektrum 3 wire switch. But you can bind directly at the receiver if you need to.

Ken</p>