These smart light bulbs offer dimmable 16 million colors and warm to cool whites (2500K-6500K). They are compatible with Amazon Alexa and Google Assistant for voice control. You can also control them remotely using the Kasa smart app on your smartphone.  The price drops from $39.99 to $29.99 to $20.99 when clipping the $9 off on-page coupon. Shipping is free with Prime or on orders over $35.

Clip the $9 off on-page coupon.