Aeration system powered by solar energy provides a sustainable way to oxygenate your water feature without electricity costs. Key benefits Solar powered 15W pump delivers continuous aeration for fish tanks, ponds, and other water features without increasing energy bills. Three adjustable modes and two air stones enable flexible and efficient air distribution to suit different setups and fish needs. Builtin 4V 4400mAh lithium battery ensures reliable backup operation at night, delivering continuous aeration when sunlight is unavailable. Adjustable solar panel angle maximizes sunlight capture, making it suitable for bird baths or small ponds as part of a garden setup. Specifications and features Function: Aeration system using solar energy with a 15W pump Air distribution: Three adjustable modes Air stones: Two included for effective oxygenation Battery: Builtin 4V 4400mAh lithium battery for nighttime operation Panel: Adjustable solar panel angle to optimize sun exposure Compatibility: Suitable for fish tanks, ponds, bird baths, and small garden water features Performance: Provides reliable, continuous aeration with flexible configuration for various environments Use scenarios Small garden pond with fish: Position the solar panel to maximize sun exposure during the day, use the two air stones to create even air distribution, and rely on the battery backup to maintain nighttime aeration. Bird bath or decorative water feature: Install the adjustable panel so the unit captures sunlight, select among the three modes to achieve quiet, gentle aeration or stronger flow as needed. Offgrid or nighttime operation: When generator power is unavailable, the builtin 4V 4400mAh lithium battery maintains continuous aeration, supporting aquatic life through the night. This product stays true to its stated function and specifications, offering clear benefits, practical applications, and a professional, trustworthy presentation.