Use this solar water pump kit to replace an existing pump of an old water feature or to convert it into a solar water feature. With four hours battery life when fully charged, this water pump is a reliable way to power your water feature. It is designed to operate on a pulse timing function, to be on for 2 seconds and then off for 5 seconds making a lovely talking point in any garden. Please Note: The pump will shut off to save the battery power when the day goes dark, and it will re-start automatically when the sun comes out again the next morning. - Primrose Solar Pump 150LPH Battery Backup Outdoor Feature Fountains Pulse Spray in True Black