Solar Power: These lights are powered by solar energy, so you never have to worry about replacing batteries or paying for electricity. Waterproof Design: With an IP65 rating, these lights are designed to be fully submerged in water and can be used both indoors and outdoors. Long Battery Life: The built-in battery provides up to 10-12 hours of runtime after a full 6-8 hour charge. 8 Lighting Modes: Choose from 8 different lighting modes to suit your needs, including twinkle, steady, and flashing. Easy Installation: Simply plug in the lights and place them in a sunny location to start charging.