There are a number of different types of inverters, but the two main types that you’ll find in automotive applications are:

• Modified sine waveThese inverters are the more affordable of the two. They produce a “modified sine wave” that’s perfectly fine for most consumer electronics, so they work well in a lot of different applications.
• Pure sine wave
  These tend to be more expensive, but they produce a sine wave that is much closer to the AC power available from the power outlets in your home. Some devices, like uninterruptible power supplies, may fail to work properly without a steady, pure sine wave, but most consumer electronics will work just fine without one.
• If you’re concerned, you should check with the manufacturer of your device before investing in an expensive pure sine wave inverter.