This product mainly uses the principle of electromagnetic induction, push - pull cup sucked in air and generate airflow. This product mainly used for aquarium and small medium-sized fish tank to increase oxygen filling in the water, increase the dissolved oxygen concentration to ensure the aerobic biological's growth needs.User Must Check The Data Lable On The Pump And Make Sure That The Actual Voltage And Hertz Are Consistent.Do Not Let The Pump Run Dry. Do Not Lift The Pump By The Power Cord.The Pump Should Be Operated Under The Water Completely.The Supply Cord Of This Appliance Can Not Be Replaced,If The Cord Is Damaged, The Appliance From Supply Before Putting Hand Into Water. The Maximum Depth Immersed In Water For The Appliance Is 0.4Meters.
