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Best 1000 watt inverter (Modified and Pure Sine Wave inverters) | SolarKnowHow

1000 watt windy nation inverter
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Deciding on the best 1,000-watt inverter is a tough decision with all of the choices available.

In this article, I have worked hard to provide unbiased feedback that will help you make a good choice.

This article is based on my experience, forum feedback from RV owners, truck drivers, contractors, campers, industrial users, etc., and of course reviews.

I have provided two quick comparison guides, and more lengthy explanations and reviews.

These are the inverters most commonly purchased through this website, that perform well and have good feedback.

This section is for people like me that want a quick snapshot.

The top two Pure Sine 1,000W inverters purchased on this site are the Bestek and Renogy inverters.

A couple more quick facts.

  • Bestek is popular among buyers that enjoy tent and car camping.
  • Renogy is purchased more by the RV and off-grid home groups.

Hands down, the most popular Modified Inverter is the 1100 watt inverter by Kreiger.

Check the quick lists below. All of these are top sellers and have good reviews.

1,000 Watt Pure Sine Inverters

Table could not be displayed.

In addition to the inverters above,, the inverters listed below are also well-made and perform well.

1,000 Watt Modified Inverters

Table could not be displayed.

In addition to the inverters above, ,the inverters listed below are also well-made and perform well.

Solar Power System Image for 1000 Best Inverters

There are several criteria to consider when choosing an inverter.

  • Pure Sine vs Modified
  • Rating
  • Noise
  • Power Output Outlets/Ports
  • Safety Features
  • Size

Pure Sine vs Modified

In addition to Pure Sine and Modified Inverters, there are also High-Frequency and Low-Frequency Inverters.


A modified inverter is reliable and less expensive than a Pure Sine inverter, and it can run most tools and household appliances.

Sensitive equipment, like what is listed below, may not function properly.

  • Motors will use more power
  • Fluorescent lights may buzz or make other noises and not be as bright
  • Clocks
  • Timers
  • Temperature contollers
  • Computer, cell-phones, tablets

Over a period of time, sensitive machines can be damaged, but because Modified inverters are inexpensive and run most tools, appliances, electronics, etc., they are the most common inverters sold.

Pure Sine

Pure Sine Waves are what your local utility company produces.

These inverters are more expensive but can run any equipment. They are better with sensitive equipment.

High Frequency

Pure Sine Wave

High-Frequency inverters are what you most often find sold. They are less expensive, small, and don’t handle industrial loads as well as low-frequency inverters.

These inverters are good with computers, electronics, small appliances, and small tools but don’t handle machines requiring large loads well – pumps, motors, and some tools with high torque.

Low Frequency

Low-Frequency inverters have an iron core, are more expensive, durable, and usually have more features and versatility.

These inverters can handle much larger loads and some features included are listed below.

  • Hardwire additional external GFCI outlets
  • Input of multiple DC voltages
  • Dual output voltages (120/240VAC)
  • Integrate battery chargers and transfer relays

Note that manufacturers are cutting back on the production of low-frequency inverters with a 1000-watt capacity or less. There are still some low-frequency systems in the market, although many of them double as battery chargers.


how much power do you need

Planning is important when building your solar system, and choosing the correct inverter is critical.

Make sure you know the total amount of wattage you will use. You don’t want an inverter that is too small, nor do you want to waste money on one that is larger than what you need.

The chart above provides standard wattage for many appliances, but the information is also available on the appliances and electronics you are using.

The wattage listed on the back, bottom, or plate is the maximum amount of power used.


A noisy converter is annoying behind your truck seat or in your RV and Camp.

On the other hand, it does not really matter if the inverter is loud if you are using noisy tools. This is why many contractors choose Modified Inverters. They may be a little noisier, but it does not really matter because of where they use them.

Consumers will let you know if an inverter is noisy, so check out reviews and forums. I have also captured that information in the longer reviews below.

Power Outlets/Ports

Most inverters have both 110AC Outlets and both 2.1 A and 2.4 A (Smart) USB ports.

I don’t care much about USB ports on a Modified Inverter because I’m probably not going to use a Modified inverter for my sensitive electronics.

On the other hand, AC outlets are critical for my tools, and if I’m only using tools then a less expensive Modified inverter is fine.

A Pure Sine inverter must have USB ports when I’m camping or in an RV or cabin. Kids like to play games and watch TV, and I need them for my laptop and phone.

Safety Features

Most modern inverters have safety features, with two critical features being surge protection and temperature control.

Other important features you may find include high voltage, voltage overload, short-circuit protection, etc.

In addition to LED indicators, alarms, and LCD Displays, modern inverters also have Smart Cooling fans that turn on and off the inverters according to preset temperatures.


One note on size and weight. CHECK THE MANUFACTURERS WEBSITE. Amazon specifications are often wrong, so check the manufacturer’s specifications. I’ve done this in the comparison guides.

Size is dependent on where you put the inverter. Are you squeezing it into a small, tight space in your car or boat? Do you have much more room in your truck or cabin?

Measure your space requirements before you make the purchase.

Renogy 1000W Pure Sine Inverter

Renogy 1000 Watt Pure Sine Inverter

This inverter has features liked a wired remote and Eco-saving power mode that makes it a popular inverter. A rating of 4.3/5 and mixed forum feedback make this an inverter to be researched before purchasing. It has an extensive fan base, but customer service is a weakness, and it has one of the shorter warranties at 1 Year.


  • Quiet
  • A well-known brand so you can find information
  • Eco-mode and wired remote


  • Difficult customer service team but decent tech support if you can reach them.
  • Several complaints about ground fault errors in new version

Bestek 1000W Pure Sine Inverter

Bestek 1000 Watt Pure Sine Inverter

This Bestek inverter receives good reviews overall (4.5/5). The built-in fuses provide good protection, although they can be hard to find if they need replacing, and no audible alarms are a nuisance. There are plenty of output ports, and the unit is well-built, compact, and mobile. This is one of the most purchased inverters on this site.


  • Protects with built-in 50A fuses, although fuses can be hard to find
  • Compact and built well
  • Plenty of output plugs


  • Shipped cables inadequate for load
  • Cooling fans always running and louder than some other inverters
  • Some complaints about inaccurate LCD Display

Xantrex 1000W Pure Sine Inverter

Xantrex 1000 Watt Pure Sine Inverter

Xantrex has a good reputation and is considered a well-built inverter with quality features like a digital display and numerous safety features for low voltage, overload, etc. However, service has reportedly decreased in recent years, and overstating the output (900 vs. 1,000W) frustrates consumers.


  • Quiet
  • Well made unit
  • Convenient digital display


  • Large and heavy. Heaviest in this group.
  • Need optional starter switch. Does not automatically restart with engine if used in vehicle this is inconvenient.
  • This is really a 900W inverter

GoWISE 1000W Pure Sine Inverter

GoWISE 1000 Watt Pure Sine Inverter

GoWise is another brand that gets poor service marks (a theme with almost all of these), but 90% of its reviews are 4 and 5 stars, and the good reviews are excellent. This inverter produces the stated output, if not more, and is recommended across several RV and DIY solar forums.


  • Good value for the price
  • Quiet
  • Allows staged ramp up to prevent surge from tripping breakers


  • Poor customer service repeatedly reported
  • Power connections too close together
  • Connection cables reportedly too small for load and surge

AIMS 1000W Pure Sine Inverter

AIMS 1000 Watt Pure Sine Inverter

AIMS has many good reviews with a rating of 4.4/5 and 87% of its rating being four out of 5 stars, but what stands out is that it has positive comments about its service and technical support. This inverter should be considered with a two-year warranty (one of the longest in this group), multiple safety checks and features, etc.


  • Quiet
  • Better service than other manufacturers
  • Quality build


  • Poor instructions/documentation
  • Only one USB port
  • Terminals too small for heavier guage wire

KRIËGER 1100 Watt Modified Inverter

Krieger 1100 Watt Modified Power Inverter

Kreiger is one of the most well-known Modified inverters in this group. It has a good reputation, and ratings of 4.5/5 support the importance. With plenty of protection, including accessories (remote switch, fuse kit, connection cables), and a 3-year warranty, this is the complete package supported by the most extensive warranty in this group.


  • Good customer service feedback
  • Longest warranty in both groups
  • Wired Remote included


  • Easy to swap terminal posts and blow fuses
  • Remote switch only for standby mode. Have to access back to turn off or drain battery
  • Power cords only 3 feet

AMPEAK 1000 Watt Modified Inverter

Ampeak 1100 Watt Modified Power Inverter

Ampeak produces a small, lightweight inverter that is easy to use and performs consistently. Unlike many other inverters reviewed, it does not drain your battery after switching it off, and the digital display is always accurate. Ampeak claims a hassle-free warranty, but the same general warranty with a description of everything it does not cover, and feedback by users, does not appear “hassle-free.”


  • Switch kills all power from batteries so no drain
  • Accurate digital display
  • 3-Year Warranty


  • Fuses soldered and cannot be replaced
  • Loud fan, constant beeping, alarm whining – noisy inverter
  • Not really a “hassel free” warranty

Energizer 1100 Watt Modified Inverter

Energizer1100 Watt Modified Power Inverter

Energizer makes a solid inverter with very little negative feedback across reviews or forums. This is a simple, well-built inverter with an accurate display and plenty of output connections. However, the included cables are a little short @ 3 feet, so plan to purchase longer cables if not installing right by your battery.


  • Volt and Amp display
  • More quiet than other Modified inverters
  • 2-Year Warranty


  • Included wires are too short

PowerBright 1100 Watt Modified Inverter

PowerBright 1100 Watt Modified Power Inverter

PowerBright is noted for its technical support, and this is illustrated by the answers provided to questions listed on Amazon. This is a quiet, dependable inverter that offers consistent performance. The only apparent weakness with this inverter is that you cannot change out the fuses.


  • Good technical support
  • Quiet
  • Good safety checks and accurate display


  • Cannot replace fuses

Voltworks 1100 Watt Modified Inverter

Voltworks 1100 Watt Modified Power Inverter

Voltworks does not have as many reviews as other inverters, but forums have positive feedback, and its rating is 4.7/5 – the highest in this group. There are plenty of good features with 2AC outlets and 2 USB Smart ports. The display is also a nice feature. A couple of comments on the unit heating up too much, but overall feedback is positive. It would be good to hear from any users.


  • Quiet
  • Consistent performance
  • Well-built


  • Included cables are short
  • Heats up at sustained use near 900W

All of the inverters I have listed are popular with consumers.

They all have their shortcomings, but they also each have their own strengths and unique characteristics.

If you have used any of these, please don’t hesitate to provide feedback in the comments section below.

Thank you

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