LoendeDirect via Amazon offers its Loende 50-LED 18-Foot Waterproof Battery-Powered Christmas String Lights in Warm White for $14.99. Coupon code "9EBEE3LX" drops it to $10.04. Plus, Prime members bag free shipping. That's the lowest price we could find by about $8. It features eight lighting modes and requires three AA batteries (not included). Deal ends December 31.