APEXPOWER Battery Pack Automatically products, high energy conversion rate. Dimensions: 6ft of leading circuit and 15ft of lighting wire with 30 Cool white crystal ball LED string lights. Rechargeable Ni-MH Battery: 1.2V 1000MAH. Charging Time: 4-8hours (due to the weather conditions). Working Time: 8-12 hours. Lights: Color white. Life Time: up to 10,000 hours(more than 1 year). Total Length: 21ft (6.3m). Length from Solar Panel to First LED: 6ft (1.8m). Spacing between 2 LED: 5.9in (15cm). Switch: Power ON/OFF, MODE. After you turn on the light, there is the 1st flashing mode. The modes included flashing, fading in and out, light on. You can choose your favorite mode. The lights will lights up automatically at dusk and turn off automatically when ambient light is strong(above 15lux). Please charge the solar panel fully for 12H at the first use. Please take off the plastic on solar panel then make sure it face to sun directly and a totally dark environment can make the lights work more perfectly.<br>