This 10w lumilife downlight is white colour changing and lets you switch between 3000k warm white 4000k daylight and 5700k cool white colour temperatures by dimmer switch giving you complete versatility when creating a lighting plan for your business or home plus it comes with a memory function so itll store and display your previous settings even after youve turned it off its incredibly energy efficient and longer lasting than halogen and incandescent equivalents saving you up