A single light point controlled by one gang switch refers to a lighting setup where a single electrical switch, commonly known as a "gang switch," is used to control the power supply to a single light fixture or bulb. The term "gang" typically refers to the number of switches grouped together in a single unit.
In this setup, the gang switch has a single control mechanism, usually a lever or button, which can be toggled or pressed to turn the light on or off. When the switch is in the "on" position, it completes the electrical circuit, allowing current to flow to the light fixture and illuminate the bulb. Conversely, when the switch is in the "off" position, the circuit is broken, cutting off the power supply to the light, and the bulb remains unlit.
A single gang switch controlling a light point is a common configuration found in residential and commercial buildings where individual control of lighting fixtures is desired. It provides a simple and convenient means to control the illumination of a specific area or room using a single switch.