Sound sensor to turn on the light: installation and connection diagram. How acoustic sensors control lighting work. Home-made sound sensors for turning on and off the light in the room: a circuit on Arduino.

Load breaker: what is the difference from a circuit breaker. Types of load switches: by the number of poles and by the design of the actuator. Symbols and marking of circuit breakers.

Lighting in a kitchen with a stretch ceiling: how to choose and place lighting fixtures correctly. How to make a spotlight in a kitchen with a stretch ceiling. Types of ceiling lights for suspended ceilings in the kitchen.

Dimmer for LED lamps: compatibility of lamps with dimmers. Is it possible to use LED lamps with a dimmer? The principle of operation of the dimmer for LED lamps. How to choose a dimmer for LED lamps.

The height of the sockets from the floor: placement in rooms for various purposes. What distance from the floor to the outlet should be in accordance with European standards, GOST and PUE. Soviet standard for installing sockets and switches.

What is a solid-state relay: description and specifications. Advantages over electromechanical relays. Single-phase solid-state AC relay: device features and scope.

Fixtures for the bath: what you need to consider and how to position it correctly. Can I use LED lamps in the bath. Fiber optic lighting for the sauna. How to choose moisture-proof lighting for the bath.

How to connect a chandelier with your own hands: features of fastening to different types of ceiling. What happens if you mix the phase and zero when you connect the chandelier. Scheme of connecting the chandelier to a single-key switch.

A switch with a trip timer: which is better to choose. How does an automatic light switch with a timer on and off. Technical characteristics and varieties of timers.

DIY thyristor voltage regulator: design features. Scheme of home-made thyristor-transformer voltage regulator. Scope of thyristor voltage regulators. Phase voltage regulation.

Hidden wiring in a wooden house: installation features. Implementation rules and safety requirements for internal wiring in the house from the log house. Installation of wiring in the floors of a wooden house. Benefits of hidden wiring.