Aptoyu via Amazon offers its Aptoyu LED Dimmable Desk Lamp for $17.99. Coupon code "HM8DHCUO" drops it to $12.99. Plus, Prime members bag free shipping. That's $2 under our August mention and the lowest price we've seen. (It's the best deal now by $8.) It features four lighting modes, a 180° vertical rotating lamp head, and two USB charging ports. Deal ends January 31.