Description: New arrived mini pump, delicate and light, very perfect for experiment, aquarium, fish tank and fountain etc. Features: Submersible water pump, it is great for experiment, aquarium, and fountain etcMicro delicate appearance Big flow rate that can be 100L/H Continuous service life of up to more than 200 hours Suitable for varieties of water such as city water, groundwater, sea water It has complete functions, it does not produce too much noise and runs quietly.Specifications: Condition: 100% Brand New Material: Plastic + Electronic Components Style: Vertical, Horizontal (Optional) Size: Approx. 4.5cm x 2.3cm x 3.2cm / 1.7 inch x 0.9 inch x 1.2 inch (Length x width x Height) Power: 3W Voltage: DC 3-4.5V ( Please keep off over-voltage) Current: within 0.05A Flow Rate: 100 L/H Water Temperature: -20C~50C Type: Submersible Water Pump Package Weight: About 42 g Package Included: 1 X Mini Submersible Pump Note: 1. Make the water level higher than the pump, too low water level may cause high temperature and noise of the pump.2. Item only includes the pump without power supply , please adapt it to 3V~4.5V power supply.3. Please allow some error due to manual measurement. Thanks for your understanding.4. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard..