Energy-Efficient Light Fixtures Come in Recessed, Ceiling Surface-Mounted, Wall-Mounted, and Specialty

question 16

True/False

Energy-efficient light fixtures come in recessed, ceiling surface-mounted, wall-mounted, and specialty styles.

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Definitions:

VARs

Volt-Ampere Reactive, a unit of reactive power in an AC electrical power system.

Three-Phase Connection

A method of electrical connection that uses three alternating currents of the same frequency and amplitude but with phases offset by one third of a cycle.

Windings

Coils of wire around a core in electrical devices, used to create magnetic fields or induce currents.

Wye

A configuration for connecting three-phase power where the phases are connected at a common point, forming a Y shape.