The swap-out takes less than 15 minutes and a new single-pole light switch costs less than a buck, making it one of the most affordable upgrades ever. Safety First.

There are two types of light switches, says Donnelly: a single-pole light switch, which has two wires, and a three-way light switch with three wires that usually look identical.

single pole double throw (SPDT) switch connects one input to one of two outputs allows switching between two circuits, unlike SPST version which only connects/disconnects one circuit ...

Compatibility: Eve Light Switch requires a neutral wire and replaces a single-pole or 3-way switch. Only for use with copper or copper-clad wire in dry, indoor locations In the Box: Eve Light ...