I am doing a simple project in which I took out the receiver cicuitboard of a wirelessly controlled toy car, and will hook up the Forward/Reverse and Left/Right terminals of it to a relay, which will then be connected to a bulb and the 220V mains supply. This way, when I use the remote control of the wireless toy car and push the F/R stick or the L/R stick, the bulbs should light up. The circuit should look something like this: The question is that I was supposed to use SPDT relays for this, but the one I was able to buy has 6 terminals, I've never used a relay like this before. I am not sure what its Normally Open, Normally Closed and Common terminals are. I found this page which gives info on it: http://www.szjltd.com/products/hke/HRS1(H).htm And this is the diagram of its inside, can anyone tell me if the terminals on the left are NO/NC and the two on the right are Common? Am I correct in thinking that?