What's Required? - Nothing! This product works out of the box with the free ‘Philips Hue Bluetooth’ app. Simply screw in your new bulb and connect to the Bluetooth app for in room smart lighting control! Designed For Full Rooms: With a brightness of 470 lumen, these smart LED bulbs provide the right amount of light to fill areas of your living room or kitchen. Play with Colour - Choose from 16 million colours including warm to cool white light to create an ambiance that suits any mood. Play with colour to create the perfect ambiance for film nights, parties, bedtime stories, or to just sit back and unwind! Control Lights With Your Voice - Works with Alexa, Google Assistant and Apple HomeKit devices for hands-free voice control. Control your smart home lights with simple voice commands! Unlock Your Homes Full Potential - Add a Philips Hue Bridge (sold separately, optional) to your cart and unlock full home control, either when you’re home or away.