Sunvalleytek via Amazon offers the TaoTronics Elune Dimmable LED Desk Lamp
in Piano Black, model no. TT-DL01, or Piano White, model no. TT-DL02, for $39.99. Coupon code "3XT2LUER" cuts the price to $29.99
. Plus, Prime members receive free shipping
. (Non-members can spend $49 to qualify for free shipping; otherwise, shipping costs $8.12.) That's the lowest total price we could find by $16. It features four lighting modes, five brightness levels, and a USB charging port.