OSRAM Smart+ LED, ZigBee GU5.3 Reflector, 12V, warm white to daylight (2700K - 6500K), dimmable, Directly compatible with Echo Plus and Echo Show (2. Gen.), Compatible with Philips Hue Bridge : Amazon.co.uk:
Philips Hue White Ambiance LED bulb 5.1W GU5.3 | Lights.co.uk
YASUI MR16 GU5.3 LED Bulb 4W, ZigBee Wireless Smart Bulbs, 12V, RGB CCT Dimmable Colour Floodlight 30° Beam Angle Supports Smart Phone App Control Works with Amazon Echo Plus : Amazon.de: Lighting