The Philips Hue Perifo track system offers smart controllable light with a modern, minimalist design. This basic set includes rails, a power supply, and four LED spots. The cylindrical, alignable spots can be freely positioned in the rail with their adapters, offering dimmable light in any color temperature or colorful light. Perifo can be conveniently expanded as a track system with additional components. Key Features: - Controllable via Bluetooth and the matching Hue app - Dimmable via app or a matching Philips Hue dimmer switch (sold separately) - Integrates into an existing Philips Hue smart home system (Hue bridge required) - Voice control compatible with Amazon Alexa, Apple HomeKit (Siri), and Google Assistant - Expandable with other components from the Philips Hue Perifo product line - Compatible with ZigBee-based systems like Innogy, Bosch, Magenta (Telekom), and Busch-Jäger Smart lighting control options: Option A: ZigBee integration via bridge and router (e.g., Philips Hue Bridge) enables local or on-the-go control via the Hue app and voice control. Option B: Direct on-site control via Bluetooth with the free Hue Bluetooth app. For more than ten lamps within Bluetooth control, a bridge is recommended. Complete Kit: Includes all necessary components for installation: four spots, rails, and power supply. Personalized lighting: Choose from millions of colors and whites to customize your home's mood. Customize and expand: Rearrange lights on tracks or easily expand your set with additional rails and lights. Easy Installation: Perifo lights click into the rails for simple installation and changes. Fine-tune lighting by angling spotlights, lowering or raising pendant lights, and more. Extendable System: Perifo track lighting supports wall and ceiling power kits installed at the end or middle of tracks, allowing Perifo to adapt to your home.