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.

If you have conventional single-pole light switches in single-gang boxes, the SwitchLight is a terrific night light and switch locator. But it’s pretty much useless in rooms with multi-pole ...

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 ...