Oak Leaf via Amazon offers its Oak Leaf Solar Pathway Landscape LED Stake Light 4-Pack for $19.99. Coupon code "OGXCLWDF" drops it to $14.99. Plus, Prime members bag free shipping. That's tied with our May mention, $26 off, and the lowest price we could find. The top-mounted solar panel charges the battery during the day, providing up to eight hours of light at night. Each light features a 5-lumen maximum output, auto on/off, anti-rust body, and crystal plastic lens. Deal ends July 31.