IextremeOfficial via Amazon offers the Iextreme 12-LED Motion Sensor Solar Waterproof Wall Light 4-Pack for $29.99. Coupon code "GJUTN4JV" cuts that to $20.69. With free shipping, that's $13 under the lowest price we could find for this quantity elsewhere, although we saw it for a buck less last week. It automatically turns on at night and features a 120° motion sensor with a 10-foot range, and built-in solar-charged 1,200mAh Li-ion battery with up to 12 hours of run-time per charge.