What relay would I need to use to switch some 12v LED's using an amplifier?
I have some LED's that run off 12v with resistors I have. I want them to flash in time to music so I am using a small 9v amp soldering that I made a while ago in a design class. What voltage and current do you think the amp will give from the speaker terminals which will be required to switch the relay?
I don't really know how powerful the amp is, I have a multimeter but when I tried to measure the voltage it didn't really work. I think it may have been peaking at about 6v