In electrical work, a “gang” refers to the number of switches or devices mounted together in a single wall plate or box.

Simple idea:

• 1 gang = 1 switch in one plate
• 2 gang = 2 switches in one plate
• 3 gang = 3 switches in one plate
• 4 gang = 4 switches in one plate
  …and so on.

Where it’s used

• Light switches
• Power outlets (GPOs)
• Data/communication plates
• Smart switches (e.g., multi-button panels)

Important notes

• “Gang” refers to the physical grouping, not the number of circuits.
• A 1-gang device can still control multiple lights (e.g., via a smart switch or dimmer).
• In some regions, the physical box size differs (US vs UK/NZ standards).