Have a question about the relay function of the Globallink 520. I have basic knowledge on electronics. I know for instance the positive side of a battery is the side with the "knobby" thing on it's end. My question is: since the Globallink relay cannot be fed more than 3V (otherwise it explodes) am I right to assume I should get a (another) relay that has 3V on the one side, so it will trigger it's relayswitch so that I can switch on a bigger load? Or, if I am mistaken, how do I switch a substantial (10A, 12V) load with the relay onboard the Globallink 520? Please take me through this step by step and bear in mind my complete and utter ignorance on the matter.