Lumilum GU10 LED Light Bulb – Professional 120V Dimmable (5500K – Cool White, 1 Bulb) - - Amazon.com
Amazon.co.uk: GU10 - Light Bulbs: Lighting
iLC GU10 LED Light Bulb, 40 Watt Equivalent Color Changing 12 Colors 5W Dimmable Warm White 2700K RGB LED Light Bulbs with Remote Control (Pack of 4) - - Amazon.com