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:
TANSHOP Zigbee Bulb MR16 GU5.3 LED Smart Bulb-4W zigbee Dimmable Bulb DC 12V Low Voltage RGBCCT Spotlight Bean Angle 120° : Amazon.co.uk: Lighting
Philips Lighting Hue LED light bulb 8719514491403 EEC: G (A - G) Hue White & Color Ambiance GU5.3 EEC: G (A - G) | Conrad.com
Philips 35-Watt Equivalent MR16 12-Volt GU5.3 LED Light Bulb Bright White 3000K (6-Pack) 576850 - The Home Depot