The outer casing of this switch is heavy metal, fooling people into thinking it's a heavy duty switch. This is not the case, and nowhere in the text of the announcement is the power rating of the amplifier specified. I'm guessing it's 3 to 5 amps, certainly not 20. While I was soldering the wires to the very small terminals, the plastic connector came loose and ripped off. Soldering iron did not touch the plastic. Under the cap were the insides of the switch and the tiny contact terminalsβ¦