Amazon have these for sale at $14.50 each. if you are prime member you can get 5% off per each 3 Bulb.
Also available for $14.53 from Amazon.com, if you have promo credits to use up. FYI. ( Thanks Wizard7926)
MUST CHOOSE Merchant Yeelight - Fullfillment by Amazon in order to recieved 5% off.
YEELIGHT Smart LED Bulb, Wi-Fi, Soft White, Dimmable, 60W Equivalent, E26 110V, Smartphone Controlled, Work with Amazon Alexa and Google Assistant. NO HUB REQUIRED
now even better they have introduce the US server,
you dont need to connect to Singapore or China server!
- Works with Amazon Alexa and Google Assistant ( voice control ) , MIJIA, IFTTT
- Wi-Fi access - control your lights by smartphone app through home Wi-Fi
- 16 million colors bulb, dimmable and color temperature range 1700k-6500k
- Set time schedules and countdowns, energy efficient
- Music sync and group control via app, no hub is required
you can receive Yeelight support at their official website and Forum in below link