Circulate and aerate the water, making it more attractive to your fish or turtles. This submersible pump is perfect for aquarium, fountains, spout and hydroponic systems, etc. Feature -Note:The accessory is random color. - Color: As Shown. - Material: Plastic. - Size: 21.5 x 17.5 x 7cm. - Battery type: . - Nominal voltage / capacity: 3.7V 1800mAH. - Solar voltage: 6V. - Solar : 420MA. - Process: PET lamination. - Air pump type: air pump. - voltage: 3.5V. - The : 450MA. - Noise: 50 decibels. - Minimum air flow: 1L / min. - Operating voltage range: 3. -4.25V. - Maximum working : 450MA. - Discharge protection voltage: 3. . - Charging protection voltage: 4.25V. - Working time: about 22 hours. - , Reliable and Super Quiet. Stainless Steel impeller shaft is resistant to corrosion. - Low power consumption. - Epoxy Sealed, High Grade plastic Pump Housing, No Sand. Stator Bobbin wound with Pure Copper Wiring, No Aluminum. Plug and Copper Enameled Power Cables. Warm Tip: Dear buyer, Due to lighting effect, 's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 1 x Solar Energy Household Pump Fishing Aquarium Pump Set