Etekcity via Amazon offers the Etekcity Motion Sensing LED Light
for $18.98. Coupon code "LIGHTLED" cuts it to $14.48
. Plus, Prime members bag free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $5.74.) That's $26 off list and the lowest total price we could find. It features a 60° motion sensor with 10-foot range, power outage mode, and produces 40 lumens of light.