A toggle switch is a type of switch that opens or closes an electrical circuit manually. It usually has two or more positions that can be switched between different positions to change the connection state of the circuit. The operation of the toggle switch is relatively simple, and users can easily control the on/off of the circuit through physical manipulation. This type of switch is commonly found in household appliances, vehicle control panels, and industrial equipment, such as lighting fixtures, fans, and car light controls.

On the contrary, a key switch is a switch that controls a circuit by pressing a button. A key switch usually has a button, and users can open and close the circuit by pressing the button. Compared to toggle switches, key switches are more flexible to operate and require less space, making them more common in some compact electronic devices such as smartphones, remote controls, numeric keyboards, etc.

These two types of switches have significant differences in design and application. Firstly, the operation of the toggle switch is relatively intuitive, and users can perceive the switch status through touch and toggle, making it more suitable for scenarios that require quick operation and intuitive control. The operation of the button switch is more discrete and requires pressing the button, making it more suitable for scenarios that require precise control and compact space. Secondly, from a design perspective, toggle switches have a wide variety of shapes and sizes to meet different application requirements, while button switches are usually more standardized and have relatively low design flexibility.

In practical applications, choosing the appropriate switch type depends on specific needs and scenarios. If intuitive and fast control is needed, and there is enough space to place switches, toggle switches may be a better choice; If compact design and precise operation are required, or in devices with complex circuits and diverse functions, key switches have more advantages. Therefore, when designing a product, it is necessary to comprehensively consider factors such as product functionality, user experience, and appearance design, and choose the most suitable switch type to meet the needs.