Bell push light switches are traditionally used on a front door, but can also be featured elsewhere in a project. From elevator buttons to a modern alternative to light switch bell push light switches offer a simple and effective form of operationWhen you press a doorbell button, you complete an electrical circuit that allows household electricity to flow through the doorbell's internal electromagnet. The magnetic field generated by the electromagnet is then used to power a mechanism that creates the doorbell sound. Doorbells are low-voltage devices.When you press a doorbell button, you complete an electrical circuit that allows household electricity to flow through the doorbell's internal electromagnet. The magnetic field generated by the electromagnet is then used to power a mechanism that creates the doorbell sound. Doorbells are low-voltage devices.When you press a doorbell button, you complete an electrical circuit that allows household electricity to flow through the doorbell's internal electromagnet. The magnetic field generated by the electromagnet is then used to power a mechanism that creates the doorbell sound. Doorbells are low-voltage devices.Bell push light switches are traditionally used on a front door, but can also be featured elsewhere in a project. From elevator buttons to a modern alternative to light switch bell push light switches offer a simple and effective form of operationBell push light switches are traditionally used on a front door, but can also be featured elsewhere in a project. From elevator buttons to a modern alternative to light switch bell push light switches offer a simple and effective form of operationBell push light switches are traditionally used on a front door, but can also be featured elsewhere in a project. From elevator buttons to a modern alternative to light switch bell push light switches offer a simple and effective form of operation