I am trying the Water Heater Thermostat for my hatcher. I don't have the lighting fixture as shown in the other posts. I have a cord regular cord with two little light sockets. It is used to light doll houses or stained glass villages but is rated for up to 40 watts. I use a 25 watt bulb. My question is this: When I cut the cord to attach to the thermostat, do I cut both pieces of wire ( imagine a regular extension cord)and attach the end of each one to the screws on the thermostat. I would then have a loose end of wire for each strand. how do I get the loose ends attached back to the main cord? The only way I can see is to attach both ends of the wire to the screws on the thermostat. My neighbor tried to help me and he said to cut only one strand of wire and attach each wire to a screw. I did that and when it got up to temperature, it shut down one of the lights and not the other. The first light never came back on and the second light stayed on. I am going to try it with a single light socket today but the wireing is the same.