Sine wave inverters are devices that convert direct current or DC from a battery to alternating current or AC. They work with sine waves and come as modified and true versions. The modified versions are a bit risky because they emit fluctuating output voltages, and can power selective energy loads. The pure sine wave inverters are a better option for powering machines that run only on sine waves like medical equipment and laser printers.

With so many sine wave inverter manufacturers around, first-time buyers may find it difficult to make a choice. Asking inverter manufacturers these questions can help you select the best inverter and manufacturer for your power needs, and that you buy the best inverter for your money.

1. What type of inverters do you specialize in?

As there are three types of basic inverters– industrial, residential and commercial, buy your inverter from a company that makes the type of inverters you are looking for. Of course, it’s always better if the company manufactures all three types of inverters.

2. Do you manufacture your inverters or outsource them?

It’s better to avoid manufacturers that outsource because they usually cannot ensure quality control. It’s only companies that produce their own inverters that will be able to ensure its quality.

3. Can you customize sine wave inverters?

Though you may not need a customized inverter now, you never know when your power inverter needs may change. This is why it’s better to buy your inverter from a company that can customize inverters.

4. Are your inverters NEBS certified?

A level 3 certification from the Network Equipment Building System (NEBS) proves that the inverter can work in adverse conditions. This is something you should know, and the inverter should have.

5. Does my chosen inverter have a warranty?

Different inverters have different warranties, and terms and conditions. Look for a unit that offers a great warranty but with minimal terms and conditions that you can read easily. This way you know if there’s anything mentioned there that could make the warranty void.

It’s based on the answers manufacturers provide to these 5 questions that will help you decide, and select the best sine wave inverter for your power needs.