Two-way switch

In short

Lets you control the same light from two places — classic stair or long-corridor setup.

Notes

Two-way switching uses a pair of special switches so either end can turn the light on or off. Common on staircases, long halls, and rooms with two entrances.

Tell the electrician early which lights need two-way control — it changes the wiring and the number of switch points.

Related terms

• One-way switch
• Intermediate switch
• Lighting point