Yes, that's correct. I need to know how much current they'll drive without burning them up. They will switch a normally open circuit to start and run a small 12vdc compressor motor, then run it continuously until an external input is supplied. I don't know how many starting amps or running amps will be required, as they're not documented, so I'll have to test it after the part arrives. If they're not rated high enough, I'll have to use a power source and a more heavy duty relay to switch it, by powering an external relay that is switched on/off by the smaller relays on the Opla. If that makes sense.