This ST72 lamp produces a warm to cool white light. The LED lamp for E27 sockets features a spiral filament, instant dimming, and all smart lighting functions, combining the old and the new. Control your smart Hue lamps in a single room of your home using the Hue Bluetooth app. Add up to 10 smart lamps and control them all with a touch on your mobile device. Experience the full spectrum of Philips Hue features even more intensely with a Hue Bridge: with a Hue Bridge, you can use up to 50 smart Philips lamps throughout your home. Create timers and routines to automatically manage your entire smart home lighting system, and use your lamps to wake up naturally or wind down for sleep. Control your lamps even when you're not at home, or add accessories like motion sensors and smart switches. Hue lamps and fixtures use various soft white tones. They are dimmable from bright daylight to soft night light. With these smart lamps and fixtures, you can fill your home with the perfect intensity of warm light for you. Experience the popular look of traditional light bulbs with a clearly glowing inner coil and transparent glass. These retro-style smart LED bulbs combine the appearance and feel of simple vintage design with the performance of the smart Philips Hue lighting system.