What's Required? Nothing! - This bulb works straight out of the box, simply screw in your new bulb and set it up using Bluetooth. You can, however, add a Hue Bridge (sold separately) to your smart lights to experience the full suite of Philips Hue features. With a Hue Bridge, you can add up to 50 smart lights to control throughout your home. Create routines to automate your entire smart home lighting set-up. Control your lights while away from home or add accessories such as motion sensors and smart switches. Vintage Design meets modern capability - Capture the popular look of Edison bulbs, featuring a distinct glowing inner coil and transparent globe, with smart filament bulbs. These smart retro-style LED bulbs combine the look and feel of simple vintage design with the power of Philips Hue smart lighting. Soft Warm White Light - This Hue filament bulb emits a soft white light. Dimmable from bright daylight to low nightlights, these smart lights allow you to fill your home with just the right level of warm light when you need it. Control with your Voice - (Requires a Hue Bridge) Philips Hue works with Amazon Alexa and the Google Assistant when paired with a compatible Google Nest or Amazon Echo device. Simple voice commands allow you to control multiple lights in a room, or just a single lamp.