Battery Outdoor String Lights,ER CHEN(TM) 20ft 30 LED Heart-shapped Battery Opetated String Fairy Waterproof Lights Christmas String Lights for Garden, Patio, Yard, Home, Christmas Tree(White) This 20ft 6m long LED battery operated string provides fairy lighting effect. The whole light is waterproof, suitable for outdoor use, no worry for rain drops.The total length of the unit is 15 ft including a 5ft lead line.15cm spacing between 2 LEDs. Newest Indoor and Outdoor Weatherproof Black Battery Box with ON / TIMER / OFF Feature that is Easy to Hide and Requires 6 AA Batteries (Not Included). It Has Locking Clips (NO MORE SCREWS!!!) to Easy Open and Close the Box. Long working time----Can last more than 6 day on steady on mode,more than 1 month on timer mode. Romantic lighting effects illuminates, ideal for decorating your gardens, patio, lawn, porch, gate, yard, etc. 6 months warranty and 30 days money back guarrantee by ER CHEN.