Feature: -Solar power, no wiring required. -30 LEDs light string gives you romantic lighting effects -19.7 feet + 3.3-feet black lead wire -The waterproof grade of the solar panel is IP44. -2 lighting modes: Steady On & Flash -Ground stake and solar panel is included. Specifications: Material: LED + plastic wire Shape: Rattan ball Number of bulbs: 30 LEDs Switch: ON/OFF, MODE Solar panel: 2V 100mA Rechargeable Ni-MH battery: 600mAh Charging time: 6 hours Working time: 8 hours Total length: 20ft Length from solar panel to first light: 5ft Package contents: 1*Rattan Ball 30 LEDs String Lights 1*Ground Stake + Solar Panel How the solar panel works? 1. During the daytime, solar panel gets sunlight and converts solar energy to electrical energy stored in the recharge battery 2. The battery release the energy as light power when sunset 3. There is a Ni-MH AA rechargeable battery in solar box, which is durable, and can be easy changed out 4. When you find your lights lifetime are shorter or dimming, it is recommended that you replace the battery