Philips Hue Smart Wireless Dimmer Switch V1 (Installation-Free, Exclusive for Philips Hue Lights). Works with Alexa, Google Assistant and Apple HomeKit : Amazon.co.uk: DIY & Tools
Cover a Light Switch with a Hue Dimmer Switch - YouTube
Amazon.com: Philips Hue Smart Dimmer Switch with Remote (Installation-Free Exclusive for Philips Hue Lights) (Old Version) : Tools & Home Improvement