Could you provide an explanation for the term 'Power Factor' in the lighting industry?

A: Power Factor (PF) measures how effectively electrical power is used. It's the ratio of the real power (watts) used to do work and the apparent power (volts x amps) supplied to the circuit. An ideal Power Factor is 1.0, meaning power is used efficiently. Lower PF indicates a wastage of energy. In LED lights, a high power factor is desirable for energy efficiency.