Since your water pump is powered by AC power and
solar cell
produces DC power, so you need to buy a 50-100W power supply
Inverter
, converts direct current into alternating current to drive the water pump. There are some points you should pay attention to when purchasing an inverter:
1.
According to the voltage of your
solar battery
2113 The value determines the input voltage of the inverter, the most common are 12V, 24V and 36V.
2.
General
AC motor
Requires sinusoidal AC power, most inverters are output
Square wave
can easily damage the motor, so you need to purchase an inverter that produces a sine wave, which may be slightly more expensive.
3.
Pay attention to the power of the inverter when purchasing it. Since your motor is only 25W, itIt is recommended to buy one of 50 to 100 W.
4.
Also, the solution above is not the best. It is recommended to purchase a DC powered water pump and purchase it according to the solar output voltage. It’s more efficient and can cost about the same. And reliability should be higher.