Simple set up Works right out of the box using the C by GE app—no additional hardware needed. Voice control with Amazon Alexa and the Google Assistant Directly connect to your Google Assitant or Amazon Alexa for voice control of your lights. Out-of-home control Get lighting control away from home through the C by GE app - no hub or bridge needed. Light that syncs to your sleep/wake cycle Adjust your white light to any color between warm, amber light tones (2000K) and cool, bluish tones (7000K), including optimized settings to support your sleep/wake cycle. Create custom schedules Automations allow you to schedule when lights are on and off, including customized schedules for different days of the week. Set scenes for every occasion Set scenes like warm dimmed light for movie time or cool bright lights when you wake up in the morning. Whole-room control Pair your Tunable White Smart Bulbs with other C by GE devices to get whole room lighting control. Control bulbs individually or group together Control each light bulb individually or group bulbs together so that you can brighten, dim, turn on and turn off your lights simultaneously. Mobile control from your smartphone or tablet The free iOS- and Android-compatible app lets you adjust brightness and turn lights on and off without leaving your seat or bed. Long lasting and low energy use LED technology uses about 84% less energy and lasts 15 times longer than a 60-Watt incandescent bulb while providing nearly the same light output. Installs easily into your existing table and floor lamps The traditional A19 bulb shape and size fits medium base sockets in open fixtures designed for 60-Watt incandescent A19 bulbs.