Sengled Bluetooth Speaker Smart Light Bulb | $12 | Amazon | Promo code 50B00PNU
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A Bluetooth-controlled dimmable light bulb for $12...pretty good, yeah?

Yeah, it is, but it’s also a freakin’ Bluetooth speaker.

Just hide it inside a lamp, pair your phone, and hit play. I wouldn’t want to build a whole smart lighting system out of these things, since they don’t connect over Wi-Fi (and thus don’t work with Alexa), but it could definitely be useful in a one-off situation. Use promo code 50B00PNU at checkout to save 50%.