Get the ambiance you want with four 75W A19 Hue smart bulbs and one Hue Bridge. The Bridge is the heart of the Hue smart lighting system and unlocks the full power of Philips Hue, including the ability to control up to 50 lights and accessories, control multiple rooms and zones, set custom automations, and have smart control from anywhere in the world. It's easy to transform your home decor and the way you feel with millions of shades of warm-to-cool white and color-changing light. They can dim, brighten, and set the mood for any moment from birthday celebrations to morning meditation.