Starter pack includes hue bridge and three bulbs with control for upto 50 bulbs on a single bridge Create lighting scenes based on your favorite photos Philips hue signals a new era in home lighting both in the way we think about and experience light in our homes, allowing you to create and control the light using your smartphone or tablet Power: 8.5 watts; Operating Voltage: 120 volts , Frequency band :2400-2483,5 MHz All Hue products require a Hue Bridge (Gen 1 or Gen 2) to function. Hue bulbs, Hue Light strips, Hue Go, Hue Bloom, and all other Hue luminaires can be paired with Echo Dot, Echo, and Echo Tap only when used with Hue Gen 2 bridge (Gen 1 Bridge is not compatible) All Hue products can connect directly to Echo Plus (without a Hue Bridge) though they will still need a Hue Bridge (Gen 1 or Gen 2) to be controlled via the Philips Hue App