Philips Hue White A199. 5 watt starter kit is ideal for dimming and smart control. Generates as much light as many 60 watt incandescent bulbs. The Hue White bulbs only dim white light, they do not change color. Through your smart phone or tablet, set timers and alarms, dim the lights and connect to a variety of apps Can't be used with conventional dimmers Control up to 50 Hue products on a single Hue bridge Compatible with ZigBee certified and Wink home automation network products Very long life - Rated to still put out 70% as much light after 25, 000 hours of operation as it does when brand new Suitable for indoor use only Starter kit includes: 2Hue White LED A19 bulbs1 Hue bridge1 Ethernet cable1 Power adapter Not recommended for use in fully enclosed fixtures because heat buildup will shorten life. Do not hot swap this bulb. Turn off fixture before replacing existing bulb.