The size of electrical wires tells you a lot about it and the type of circuit breaker it requires. Here is a simple diagram showing you how many wires and what breaker is required for each type of wire.
It's Electric! How Your Circuit Breaker Panel Works
Add undercabinet lighting to existing kitchen cabinets. This unique method of wiring undercabinet lights eliminates disruptive wall tear-out and minimizes the difficult job of fishing cables from your attic or basement.