Blue Wave NA4193 Evolution Floating LED Solar Pool Light 3 bright LED lights will last up to 30,000 hours Built-in solar panel absorbs sunlight for power Provides up to 7 hours of nighttime illumination Water-tight perfect seal allows light to float on the surface of pool, lake or pond Crafted from durable chemical-resistant ABS material; Measures 11.5 -in diameter x 7-in H