The smart control card WiFi with 4 relay 5 Volts

Eaton Wi-Fi Smart 15-Amp 125-volt Tamper Resistant Residential Decorator Smart Outlet, White in the Electrical Outlets department at

4 Ways to Control Electronic Relays - Make

WebRelay, Ethernet Relay

Low level trigger 8-channel relay capable of controlling 10A 30V DC or 10A 250V AC signals. Can be used with Arduino microcontroller or Raspberry Pi. Commonly used for driving high voltage devices such as lights and fans with a low voltage connected to MCU.

8-Channel 5V Relay Module for Arduino Raspberry Pi Canada

Using an ESP8266 Dual Relay Combo Board with Home Assistant - Hardware - Home Assistant Community

Wifi Relay Switch Network Relay Module With Antenna Wireless Smart Home Multi-channel Mobile Phone Remote Control Wk4 Dc 9-38v - Integrated Circuits - AliExpress

InRouter302, LTE Cellular Routers

ESP32 Relay Module - Control AC Appliances (Web Server)

ESP8266 first project: home automation with relays, switches, PWM, and an ADC, by R. X. Seger