Mulcolor via Amazon offers its Mulcolor 12-LED Motion Sensor Solar Light 2-Pack for $18.99. Coupon code "F5LIIIMY" drops it to $12.34. Plus, Prime members bag free shipping. That's $5 under the lowest price we could find for this quantity elsewhere. 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.