$25 off orders over $75 + free shipping with rebate. Promo code: FLINGNEVER NEEDS BATTERIES. COMPLETELY RUNS ON SOLAR POWER. Solar Powered String Lights are perfect for decorating your doorways, trees, pergolas, patio — even a campsite! This string features 20 miniature lanterns on a 30-ft. cable. Each lantern is 2.75" tall. These lanterns never need batteries… A separate solar panel soaks up the sun during the day, and powers each lantern for up to 6 hours at night. There are no plugs, wires or cords needed, either — simply hang and enjoy!