Koogeek LED Light Switch Two Gang Smart Wi-Fi Enabled 220~240V Works with Apple HomeKit Support Siri One-Way Single Pole Wall Switch on 2.4GHz Network Monitor Power Consumption Beige - Buy Online -
It seems the Koogeek app allows you to retrieve lost HomeKit codes - but only for its own devices. : r/HomeKit
Smart 3 Way Dimmer Light Switch Kit, Meross 2.4GHz WiFi Dimmer Switch for Dimmable LED Light, Halogen and Incandescent Bulb, Support Alexa, Google Assistant and SmartThings, Remote and Voice Control - - Amazon.com