Item characteristics Voltage: 12V Power: 160w Maximum flow: 6000L/H max head: 29.5 ′ （9m Material: Chrome Paint, Plastic Size: 28 * 20 * 17 (cm) Outlet diameter ： 25MM 、 40MM 、 50MM Weight: 3.5 kg For wiring, please note the red line + black line Operating limits Max mean temperature + 35 Max. Ambient temperature + 40 PH level 5-9 Immersion depth from 0.5 m to 8 m Voltage fluctuation range: 0.95-1.05 times the nominal value Voltage: DC power supply 12V; Red positive pole (+), black negative pole (-) Total diameter :14cm/5.51in Height: 21cm/8.26in.