Coco City via Amazon offers the Litway Semi-Circle Wall-Mount Solar Light 4-Pack in Black or White for $22.12. Coupon code "6PHXVIWD" cuts it to $15.48. Plus, Prime members bag free shipping. That's the lowest price we could find for the quantity by $7, excluding other Amazon vendors. Each IP65 waterproof light turns on automatically at night and features six LEDs and a replaceable rechargeable AA Ni-MH battery that provides six to eight hours of light per charge. Deal ends November 30.