What does a light switch do?
The illuminated light switch is a circuit element with a sudden-press type that activates the ladder automatics, which is used to turn a lamp or lamp group on and off, and has an LED light on it that allows them to be easily noticed in the dark. It is also used for lighting level control by using it with a dimmer.

What is On Off light switch?
Some of the illuminated on-off switches may be covered with a transparent surface. These products allow the light to spread over more areas. Thus, it creates a remarkable indicator in its environment and also acts as a light in dark environments.

Does the light switch consume electricity?
In the "classic type" extension cables with the lamp switch we are familiar with, there is no electricity consumption if the switch is in the off position.