Walmart offers preorders of Xiaomi Mi LED Smart Desk Lamp in Tunable White for $29.99 with free shipping. That's tied with our mention from two weeks ago and is the lowest price we could find by $17. The Google Assistant-compatible Mi LED Desk Lamp has four preset "modes" and a range of color temperature configuration between 2700K and 6500K.

Note: It is expected to ship December 14.