Anker makes smart light bulbs now, because of course they do, and today’s your first chance to get them at a discount.

The standard 2700K white bulb is $3 off, down to $17, but I’d probably recommend paying a few bucks more for the tunable white model.

While both bulbs can be dimmed with your smartphone (even if your lamp doesn’t have a dimmer), the tunable bulb can output just about any shade of white, from sunlight-simulating daylight to Edison-style warm white. It sounds like a small thing, but different shades of light can seriously boost your productivity, or help you relax when it’s almost time for bed.

You can control either of these bulbs with your smartphone via the free Eufy Home app, but the real fun is controlling them with your voice via Alexa. Any Alexa-enabled device can do this, but we happen to have an exclusive discount on the Eufy Genie, which is very similar to an Echo Dot, only cheaper. Just use code KINJA000 at checkout to get it for $30.