A toggle switch is a type of electromechanical switch with a handle or lever that is pushed to control the electrical flow to a device. It is a graphical control element that allows the user to make a choice between two mutually exclusive states, such as on/off). Toggle switches have an operating lever that can be pushed up and down or left and right to switch an electrical circuit. They are used in a wide variety of general-purpose applications and are designed to provide a path for current to flow through, either turning on or turning off (breaking or making a circuit).

Toggle switches are operated by hand, usually with a small lever flicked up or down, left or right. There are two functions available: a momentary function means once the force is removed, the switch is no longer engaged, while a latching toggle switch maintains the state once pressed until the toggle is pushed back again to release the switch. Toggle switches are simple to use and reliable, and they have a similar function as checkboxes, but unlike checkboxes, interacting with a toggle switch usually has an immediate effect on the application or system).

Toggle switches are used in a wide variety of applications, and therefore have an extremely large number of variations in both external size and specifications. They are categorized by their external size, and there are many different types of toggle switches available, including miniature toggle switches, subminiature toggle switches, and ultra subminiature toggle switches. The type of toggle switch required will depend on the application or style of the product/project.

Toggle switches can be used to activate accessories in a car, and there are many ways they can be used and wired. There are three types of toggle switches:

1. SPST Toggle switch (Single Position, Single Throw): A simple On-Off switch that typically has two terminals. One is for input, and the other is for output. In one position, the switch is "Open," and no connection is made, and no power can flow to the accessory. In the other position, the two terminals are connected, and power can flow through.

2. SPDT Toggle Switch (Single Position, Dual Throw): A bit more sophisticated, it makes one of two connections. Terminal 1 is connected to one load or accessory, Terminal 3 is connected to another load or accessory. Terminal 2 is connected to power. The switch is always making one of the two connections and flips between them. As long as power is connected to the switch, one is always "On".

3. DPDT Toggle Switch (Dual Position, Dual Throw): A bit confusing, it might be easiest to consider it to be two SPDT switches that are mechanically linked. It has six terminals and makes two connections per switch. It can be wired in many different ways, but the most common way is to have the ce...