4CH AC Dimmer V1 Module Controller Board Arduino from KRIDA Electronics on Tindie
IOT DynRobot 4 Channel AC Dimmer 3.3V/5V 50/60hz max 4A per Channel Great for Any Micro Controller: Amazon.com: Tools & Home Improvement
Serial 3 Channel SSR AC Dimmer for Arduino and Raspberry PI - Etsy Sweden
AC Light Dimmer Module, 4 Channel, 3.3V/5V logic, AC 50/60hz, 220V/110V - Price history & Review | AliExpress Seller - RobotDyn Official Store | Alitools.io