Features: Solar-powered string lights, operating on low voltage, no outlet required, no electricity costs. Eco-friendly outdoor solar lights, highly efficient for energy savings. Light sensor technology: The LED bulbs will automatically illuminate at dusk and turn off at dawn. Specifications: LED color: Blue LED count: 200 LED Light source: LED Switch: ON/OFF, MODE Working modes: 8 light modes Charging time: 6-8 hours Total length: 72 feet (22 m) Distance between each light bulb: 3.9 inches (0.1 m) Length from the solar panel to the first LED: 6.5 feet (2 m) What is included in the package? 2 x 200 LED Solar String Lights Blue 2 x Solar Panels with Ground Stakes 1 x User Manual Helpful tips 1. How to check if the light string works during the day? A. Completely cover the solar panel, and the lights will turn on. B. If they do not, let the solar panel sit in the sun for an hour, then cover it again; it should light up. 2. Ensure that the solar panel is NOT blocked from sunlight, as it must gather enough energy from the sunlight. 3. It is ONLY designed to withstand rain. Please AVOID submerging it in water. 4. The light string has a memory function. It will resume your last settings from the previous use when you turn it off and on again. 5. The solar panel features a light sensor function that allows it to automatically turn off at dawn and on at dusk.