Let the sun bring the air to your fishes with Lewisia Air Aerator Pump ~ 3 Working Modes: 1. High Setting 2. Low Setting 3. Cycles On and Off: 10 seconds on/10 seconds off (Indicator light is light blue) Optimal oxygen level and keeps fish and pond-life healthy Rippling effect of air bubbles Prevent mosquitoes from laying eggs Helps keep your pond clean and algae free Oxygenate your garden pond during the warm summer months when the water oxygen levels are low After a sunny day, the battery will keep air moving all through the night. Product Specification 1. Solar Panel:0.9W 3. Pump: 3V DC air pump Sound: less than 60dB Air flow: 0.5L/min-0.9L/min 4. Product working voltage range: 3.0V-4.25V 5. Charging time: by solar panel under sunlight- 25H; by 5V 1A charger- 5H 6. Working modes and runtime on full charge 1)- High Setting (24H) 2)-Low Setting(48H) 3)-Cycles On and Off: 10 seconds on/10 seconds off (96H) 4)-OFF 7. Indicator color when charging: if the battery power is <50%, the indicator is breathing red; if the battery power is >50%, the indicator is breathing blue; if the battery is fully charged, the indicator is constant blue. 8. Indicator color when air pumping: if the battery power is <50%, the indicator is red; if the battery power is >50%, the indicator is blue Package Included: 1 x Solar Panel 1 x Air Tubing 1x 3-Way Connector 2 x Air stones 1 x USB Cable 1 x User manual