A pure sine wave inverter (PSW) transforms direct current (from batteries, solar panels, or car batteries) into alternating current with a smooth, consistent waveform —just like the electricity from your local power grid.
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Do I need a sine wave inverter?
In certain applications, true sine wave inverters are required due to the compatibility requirements of the AC device to be powered, such as radios, amplifiers, CPAP machines, some televisions, some microwaves and variable speed motors, such as drills.
What is the difference between a pure sine wave inverter and modified sine wave?
It's helpful to know why the differences between pure sine wave inverters and modified sine wave inverters might matter. The two main concerns are efficiency and unwanted interference from the extra harmonics in a modified sine wave. A pure sine wave inverter is beneficial because it:
Most electronic devices can work without a pure sine wave inverter, but there are some important points to consider before buying one. It's helpful to know why the differences between pure sine wave inverters and modified sine wave inverters might matter.