Dramatically change the look and function of a kitchen by adding under cabinet lighting. Get a complete list of tools you will need, plus step by instructions to add under cabinet puck lighting to your kitchen. You will need to find pull power from the attic or from an existing outlet. Remember to kill the power first. Next place your lights close to the front of the cabinets. Then run the wires under the cabinets or through the wall and connect to your outlet or dimmer switch.