Locator switches illuminate when they are in the OFF position, to help you locate them in the dark.
Pilot Light Switches
A pilot light switch illuminates when the switch is in the ON position, to alert you that a light that's out of site at the switch (such as an outdoor, basement or closet light) is on.
Some toggle switches have lighted handles, while others are only lighted around the toggle's edge.
There are a variety of ways a rocker switch can be lit.
Some rockers have an embedded jewel that lights up.
Others have a light inside that glows through the paddle.
Certain combo rocker switches have a bar along the top or bottom switch that can be removed and replaced with a snap-in light bar.
Outlets can also provide illumination.
These receptacles have built-in night lights to the side of the GFCI set/reset buttons.
Perfect for bathrooms and hallways at night.
Illuminated Wall Plates
Illuminated Louvered Switch Plates
A light inside the wall can also be covered with a louvered switch plate, which allows the light to shine through the slats in the plate.
This is a common way to light outdoor steps.