One-Way Light Switch VS. Two-Way Light Switch

One-Way Light Switch VS. Two-Way Light Switch

14 Apr, 2023

A switch is the most common device used in everyday life for turning on and off electrical appliances. A switch can make or break a circuit. The electric current can flow in a circuit till the switch is in an ON state. In electrical wiring, switches are most commonly used to operate lights, permanently connected appliances, or electrical outlets. The switches are commonly used to turn on and off various electrical appliances like fans, lamps, coolers, ACs, etc.


There are many types of electrical switches available. Two of them are one-way switches and two-way switches which are briefly described in this article.


One-Way Switch


A one-way switch is a switch with two terminals that allows current to flow in only one direction, i.e., it does not conduct in the opposite direction.

When a one-way switch establishes a connection, it is ON, and current flows through it. When the switch is OFF, it breaks the circuit, and no current flows through it.

One-way switches are used in applications where appliances need to be controlled from only one position, typically in homes, offices, industries, etc. to control the operation of fans, lights, etc. from a single position.

1 Gang 2 Way Light Switch with N Terminal and Indicator


Two-Way Switch


A  two-way switch is a switch with three terminals. Basically, a  two-way switch is two one-way switches combined in one unit. The two-way switch can conduct in either direction.

When a two-way switch conducts, one terminal is connected to the other terminal, but the third terminal is disconnected, i.e., the three terminals of a  two-way switch cannot be connected together at the same time.

A two-way switch is a special type of switch that is not commonly used. It is mainly used for staircase wiring, long corridor wiring, etc. to control light fixtures.  Two-way switches can also be used to control a single appliance from two different locations.


2 way light switch


Whether you should opt for a one-way switch or a two-way switch is entirely your choice and needs. The one-way switch also called the single pole switch is effective in small rooms and for domestic electrical appliances. And a two-way switch is apt for multi-door large rooms, stairways, and long corridors. An easy switch to operate but a little complicated to install.

Check out SOK's One-way and Two-way collections, they're built to last and you'll find a satisfying selection here.

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