Walmart offers the Philips Hue White A19 60-watt Equivalent Dimmable LED Smart Bulb
. Opt for in-store pickup
to dodge the $5.99 shipping fee. That's the lowest price we could find by $5. (For further comparison, we saw a 2-pack for $22.49 during Black Friday week.) Via the Philips Hue app, you can dim the bulb, turn it off and on, and create light schedules. It's compatible with Amazon Alexa, Google Assistant, Nest, and Apple HomeKit.