Product Description Easy to install. No wiring required No electricity cost. Recharged by solar panel under sunlight, and no battery replacement. Two light modes. Flash light and steady-on light. String light length: 23 ft (6.5ft lead cable included). LED quantity: 50. Spacing of LEDs: 4in Waterproof. IP55. Suitable for outdoor applications. With light sensor. Automatically turns on at dusk, and turns off at dawn Low Voltage. Working voltage is 1.2 volt. It's safe to use in places where you may touch. Illumination time: >12 hrs (if fully charged) Charging time: No less than 8 hours in sunlight. Eco-Friendly. No lead or mercury. No UV or IR Radiation Note: These solar power fairy lights cannot be connected in series or cut into shorten length.