eBay
Bought brand new and never used

Sylvania Osram Lightify 60 Watt A19 Tunable White Smart Home LED Light Bulb

LIGHTIFY smart connected lighting LED soft white A19 bulb
Home automation smart lighting controlled by smartphone or tablet
LED bulb tunable between soft white and daylight white (2700-6500 Kelvins)
Requires ZigBee certified gateway (sold seperately)
Long 20,000 hour life rating
Free LIGHTIFY App runs on Apple iOS7 or above and Android 4.1 or above