Mulcolor via Amazon offers the Holan 12-LED Motion Sensor Solar Waterproof Wall Light for $9.99. Coupon code "8EPFWLTD" cuts that to $6.99. Plus, Prime members bag free shipping. That's a buck under our April mention and the lowest price we could find by $2. It automatically turns on at night and features a 120° motion sensor with a 15-foot range, and built-in solar-charged 1,200mAh Li-ion battery with up to 12 hours of run-time per charge.