IextremeOfficial via Amazon offers its Iextreme 12-LED Motion Sensor Solar Waterproof Wall Light 4-Pack for $29.99. Coupon code "99FF24GA" cuts that to $18.89. With free shipping, that's $4.72 per light, $2 under our July mention, and the lowest price we've seen. (It's the best deal for the quantity now by $14, excluding other Amazon vendors.) Each light automatically turns on at night and features a 120° motion sensor with a 10- to 26-foot range and built-in solar-charged 1,200mAh Li-ion battery with up to 12 hours of run-time per charge. Deal ends September 1.