The Complete Handbook of Track Lighting Fixtures

Chapter 1: Understanding Track Lighting Fixtures

Track lighting fixtures are the individual light-producing components that attach to a track, which itself is an electrified busway mounted to a ceiling or wall. The fixture is the part that matters to the eye, but to understand it, you have to understand the entire system. A track lighting system consists of three basic elements: the track, the adapter (or connector), and the fixture head. The track supplies power and a mechanical rail; the adapter makes the electrical and physical connection to the track; and the fixture head holds the lamp or LED module and directs the light. The fixture head is the technology that delivers illumination, and it is the part that owners, designers, and electricians spend the most time selecting and servicing.

What separates track lighting fixtures from standard fixed light points is the manner in which they are energized and relocated. A ceiling box is a fixed point. You wire a pendant or a surface-mount fixture to it, and the light source remains stationary. A track, on the other hand, is a linear electrical distribution system. It is a continuous metal channel that acts as both a supporting rail and an electrical conductor. Because of this design, a fixture can be added, removed, or repositioned along the length of the track without rewiring the ceiling. This flexibility is the root reason track lighting exists. It allows end users to adjust the direction and focus of light in a space with a