Woot offers Philips Hue 4-Pack White A19 Medium Lumen Smart Bulb for $46.99 free shipping with Prime. 

Product Description:
Go bright by giving your largest spaces this bright, smart light. With a brightness equivalent to a traditional 75-Watt bulb, this bulb can tastefully illuminate living rooms, kitchens, and more with 2700 color temperature.
Dimmable features allow you to control the level of brightness. Own our Hue Hub? You can set timers to dim your smart bulbs as the day goes by.