Thumb Score: +18

Kakanuo via Amazon [amazon.com] has 2-Pk Kakanuo 5000mAH Cordless Rechargeable Table Lamps (Black) for $19.99 – 50% at checkout = $10.
Shipping is free with Prime or on $35+ orders.

Price
$16.99 lower (63% savings) than the list price of $26.99
$9.99 lower (50% savings) than the previous price of $19.99