1. The document provides instructions for reusing an original 4-wire fiber-optic light when replacing an electronic control system with a new control box. 2. It lists the necessary parts which include a relay, air switch, air button, tubing, and various wires. 3. The installation instructions describe how to mount the relay and wire it to the new control box light wires and incoming voltage to power the fiber-optic light when the new light is turned on. An air switch is also mounted and wired to allow control of the fiber-optic light's color wheel.