When using it, be sure to correctly match the voltage of the machine, 12V machine is used with a single battery, 24V machine is used with two batteries, 48/60V/72V machine is used in electric vehicle charging socket, 220V is used in household power supply, different Voltages cannot be mixed, otherwise the motor may be burned. Product Name: Electric Sprayer Piston Pump. Voltage: 12V 24V 48V 60V 72V 220V (optional). The metal pump head adopts sheet metal technology, and the surface is painted, which is durable. With accurate pressure gauge to display pressure value in real time. The pressure regulating valve can adjust the water output at 0-30KG. Fast heat dissipation design. 1 x Piston Pump. 1 x 30CM water gun. 1 x 2M water inlet pipe. 1 x 1.6M return pipe. 1 x Demolition Wrench. 1 x Accessory Pack.