Brighten up your room automatically with ease, comfort, and total control. The SmartThings Smart Bulb can be managed from your smartphone or tablet through the SmartThings app. Turn on your entryway lamp as you’re heading home, dim the lights for a romantic dinner, or schedule lights to turn off when it’s time for bed. It’s the smarter way to light your connected house while you also save money on energy costs. The SmartThings Smart Light Bulbs require use with a SmartThings Hub, SmartThings Wifi or compatible device. Voice control is compatible with Amazon Alexa, Google Assistant, and Bixby. Additional details and specifications include: Lifetime of 25,000 hours; dimensions are 2.36” x 2.36” x 4.21”; protocol is ZigBee 3.0 (1. 2 HA support, Repeater), 806 lumens, and electric power of 9 watts.