sounds like low voltage, which means you can use tape. The proper way to do it would be to trace the wires back to where they come from and disconnect them there, but the quick and easy (lazy works for me) way to do it is cut the wires so the ends can't touch each other (cut one a couple inches shorter than the other) and tape them off. make sure the ends cannot touch metal. You won't burn your house down if you do it wrong but you may blow fuses/trip the breaker ...or you'll get a quick bzzt everytime you touch the freezer ..haha
If you want that light to work tell me where you live and I'll come repair that wire for you.
