1CH AC Dimmer Module Controller Board Heatsink from KRIDA Electronics on Tindie
Amazon.com: Genuine RobotDYN - PWM Ac Programmable Light Dimmer 110V - 220V AC Module Controller Board for Arduino, STM, ARM, AVR, Raspberry Compatible 50/60hz with HeatSink 3.3V/5V Logic from 110V Ac to
Single Channel Embedded Dimmer Module 600V AC 16A — PMD Way
UNIVERSAL FOOTWELL KIT PWM DIMMER MODULE KIT
AC Light Dimmer Module, 2 Channel, 3.3V/5V logic, AC 50/60hz, 220V/110V - AliExpress