First, connect the pump with 220V power supply(transformer output is 12V). Put water pump into clean water. Water needs to drown the inlet of the pump. Connect the pipe to the water outlet of the pump. Input Voltage: 220VRated Voltage: 12V/1.5A Adaptive Temperature: 0-80℃ Maximum Flow: 4L/min Maximum Lifting Distance: 5 meters Instructions: 1. First, connect the pump with 220V power supply(transformer output is 12V). 2. Put water pump into clean water. Water needs to drown the inlet of the pump. 3. Connect the pipe to the water outlet of the pump. The heads are 5 meters, head is suitable for three sizes of water pipes of 6mm8mm10mm. The heads of 5 meters and 10 meters can only be used for 6mm water pipes, and the stepless speed regulation has a longer life and the water volume can be adjusted.Notice: 1. The pipe of the water pump should be as short as possible, long pipe will affect the flow and lift. 2. The shorter the pipe, the larger the displacement, the longer the pipe, the smaller the displacement.for Garden, Pond, Pool, Fish Tank, and Outdoor