Best Pure Sine Wave Inverters Review For 2021

Ever heard of how an obsessive inventor Lord Armstrong had to build a dam and a turbine to power just one bulb? Well, you can easily surpass that feat with one of the best pure sine wave inverters.

Thinking of what an inverter is or what it does? An Inverter is a device which enables you converts Direct Current (DC) power into Alternating Current (AC) (the type of electricity stored in batteries into the type of power we use in our home).

Inverters are great for offices, stores, residential estate and business centers.

Now let’s talk about pure sine wave inverters.

Top Rated Pure Sine Wave Inverters For 2019

What’s A Pure Sine Wave Inverter?

There are various forms of inverters available for sale in the Market, hence, the need to explain what the best pure sine wave inverter is.

Depending on how the inverter converts power from Direct Current to Alternating Current, the resulting electricity may vary from rough and simple or square (modified)  wave on the one hand to smoother and finer sine wave on the other end, i.e., the type of electricity in our homes, offices and business places.

These two waveforms differentiate between the main two types of inverters (pure sine wave inverter and the modified sine wave inverter).

A pure sine wave inverter is the type of inverter whose output voltage has a “sine wave-form” like that of the mains/utility voltage.

The output of a sine-wave inverter is almost exactly as the Alternating Current power we get in our homes. It’s more difficult producing this kind of Alternating Current power from an inverter but allows you to safely and efficiently power all your devices.

Pure Sine Wave vs. Modified Sine Wave – Why Pure Sine Wave is better?

Today, one of the popular questions asked by many customers is which type of waveform inverter is the best between the pure sine wave and the modified sine wave inverter.

Both the two types of the inverter will power appliances that use alternating current. However, the pure sine wave inverter provides a high-quality power equal to that in our homes and far better than that of the modified sine wave inverter.

Although the modified sine wave inverter provides efficient power and is adequate for simple electronics, the implication is that it may damage more complex ones.

The modified sine-wave inverters are very affordable and use a more basic technology than the pure sine-wave inverters. They produce the power which is adequate to power simple electronics and other less sensitive appliances such as heaters, phone chargers and air conditioners.

The modified sine-wave inverters are best used for resistive loads which do not have a startup surge.

The pure sine-wave inverters used a highly sophisticated technology which helps protect even the most sensitive electronics. A pure sine-wave inverter produces power which equals the one in our homes.

Some appliances which may not properly function or which may be damaged when using a modified sine-wave inverter will be safe with a pure sine-wave inverter.

This form of inverters can be used to power digital microwaves, laptops, televisions and other sensitive electronics. A pure sine-wave inverter can power any Alternating Current electronic without the risk of causing damage.

One other advantage of a pure sine wave inverter is that it has a better and a clearer signal compared to a modified sine wave inverter which has a blocky signal.

 

Best Pure Sine Wave Inverters Review 2019

1.  Samlex America PST Series Pure Sine Wave Inverter.

The Samplex America PST 2000-12 produce a clean, stable and a reliable Alternating Current load that is similar to the electricity generated by your electric power supplier.

It is ideal for powering sensitive devices such as stereos, TV’s other home and office electronic appliances. The PST 2000, a commercial grade design and advanced technology pure sine-wave inverter is also suitable and great for heavy-duty loads, emergency back up and long hours of continuous operation.

The PST 2000-12 PST Series Is assumed to be the best 2000 watt inverter. Fully equipped with high-speed cooling fans for maximum cooling capacity).

All the PTS series pure sine-wave inverters are REMOTE READY. Comes with optional wireless and wired remote starting systems which can as well be purchased separately.

The PST 2000 watt pure sine-wave power inverter is highly efficient (95+) and reliable. Very low total number distortion (THD <5).

Some of its other features include the temperature controlled-cooling fan and Two GFCI Protected Outlets among others.

PROS

• Silent Operation: The temperature controlled-cooling fan runs quietly and this reduces energy consumption.
• Industrial grade.
• Low Interference: doesn’t disrupt the reception of your radio, TV, or audio equipment
• Two GFCI Protected Outlets.
• Safety Certified to UL standards and FCC Approved.

CONS

• Does not have a live neutral configuration.
• Sometimes there is amplitude modulation on the output of the inverter.

 

2. Aims Power 2000 Watt 12 VDC Pure Sine Inverter Charger.

The AIMS 2000 watt low-frequency inverter charger is great for most off-grid systems, toy haulers, semi-trucks and/or any remote location needing power.

This powerful sine-wave inverter is capable of producing 2000 watts of clean. Continuous and reliable power just like the one supply by your local electricity power station.

It is ideal for ideal for all household appliances including the sensitive electronics and what have you. The best 2000 watt pure sine wave inverter

Inverter if needed, can produce a total surge power of 6000 watts for good 20 seconds. But it is recommended you purchase a larger inverter for startup applications like computers, fans, refrigerators and microwaves that often required more than 6000 watts.

This sine-wave inverter boasts a ’70 amp’ and an automatic transfer switch for use with generator power or shore power to recharge your batteries, or as a backup for your sump pump, Lightning system, medical equipment or security/surveillance system.

The built-in battery selector works fine with AGM 1, AGM 2, Gel USA sealed lead acid, Open lead Acid and Gel EURO battery types.

PROS

• Produce a 300 (6000 watts) surge power for 20 seconds.
• Equipped with a ‘powerful 4-step smart charger’ capable of charging at 70 Amps.
• The maximum charge current may be adjusted from 0-100.
• Easy to set-up.
• Comes installed with an ‘automatic transfer switch’ that quickly transfer you to the back up power in case of sudden power outage.

CONS

• Have only one year warranty.
• No solar power support.

3. Xantrex Freedom SW3012 12V, 2000W and 3000W.

The Xantrex Freedom SW3012 2000W and 3000W converts Direct Current power into clean and stable Alternating Current which is great for running home appliances, motors and pumps.

It produces 3000 watt of surge power to get the device started, and with 2000 watts of power to the device running. It also guarantees compatibility and efficiency with sensitive equipment like computers, motors compute and more.

It’s compact, affordable and much more portable, the Xantrex Freedom 2000 watt is great for use on boasts, work sites and also for permanent use in our homes.

By many, the 2nd generation 2000 watt model is taken to be the best 2000 watt power inverter. It has been redesigned completely to include many of the great features found in the higher power counterpart.

One key feature enhancement is the ‘generator support mode’ that enables the inverter to supplement a generator when Alternating Current load is beyond the generator’s capacity.

PROS

• Series and Parallel stacking capability.
• Battery over-voltage and under-voltage protection.
• Pure can be used to operate sensitive electronics.
• Advanced configuration options for customized applications.
• Full inverter output of up to 40°C.
• Dual input/Dual output AC interface.
• Can charge batteries which are completely drained to low voltage.

CONS

• A very complex design.
• Very expensive.

 

4. Magnum Energy PAE Series 4000W 24VDC Pure Sine Inverter.

The 4000W MS4024PAE from the famous Magnum Energy, is an upgraded pure sine-wave inverter that is designed for all kinds of renewable energy applications. It is easy to use, powerful and above all, cost-effective.

This amazing device comes with multiple safe and reliable mounting ports and also incorporates a power factor corrected charger. Another interesting fact is the convenient switched they feature which includes an RS485 communication port for network expansion.

One key enhancement design is the extra-large Alternating Current access cover couple with terminal screw block and a 360 degree Direct Current connection terminals with covers.

All these and more make this inverter more accessible. The power factor corrected charger is built into this inverter’s charger and allow it to use 25-30 less Alternating Current than standard chargers.

The 4000W MS4024 PAE MS-PAE Series comes with ON/OFF inverter mounted switch with an easy-to-read LED indicator.

The MS-PAE Series is uniquely designed to provide 120-240 volts output in one unit, thereby eliminating the need of stacking two units together in order to get 240 volts.

You can as well parallel up to four inverter/chargers for up to 17.6 kilowatts of power at 120/240V.

PROS

• Easy to use and very powerful.
• The power factor corrected charger uses 25-30 less AC compare to standard chargers.
• Safe and reliable.
• Can be used to power virtually all kinds of electronic devices.
• Low total harmonic distortion of less than 5 percent.

CONS

• Less than one year warranty.

 

5. Go Power 3000-Watt Pure Sine Wave Inverter.

Highly energetic! The Go power GP-SW3000-12 3000 Watt Pure Sine-wave Inverter converts a 12 volts Direct Current battery power into Alternating Current just exan act replica of that supply by your local power station.

It is assured to run any electronic device and other household appliances within their wattage range. Has a two-year warranty. This model of pure sine-wave inverter has a two GFCI outlets, it can also use ‘GP-DC-KIT5’ to easily connect to the batteries.

For as long as the load do not go beyond 3000 watts, the GP-SW3000-12 can run it and it can surge up to 6000 watts.

Additionally, it comes with a simple and an easy to follow manual. The GP-SW3000-12 can power your plasma screen, stereos, computers, Woofer, laptops and other highly sensitive electronics without worry. It produces a clean and a reliable power with very low harmonic distortion.

 PROS

• 6000-watt surge for boasts RV’S, cars and
• Provide under voltage, over voltage and overload protection.
• Safety certified to UL standards.
• Provides 3000-watt continuous power.

CONS

• Not waterproof.
• Domestic customers know less about it.

 

6. Samlex 2000W Pure Sine Wave Inverter.

The sixth on the list is the Samlex 24VPST 2000W Pure Sine-wave Inverter. While some think otherwise, many are of the view that the Samlex 2000W Pure Sine-wave Inverter is the best 2000 watt power inverter.

This highly efficient DC-AC inverter is able to convert 24 Volts Direct Current to 2000 Watts of clean pure sine-wave Alternating Current power at 60 Hz, 120 Volts.

The unit features battery cables which are of the pin type of course.

Other features that will interest you include, overload protection, shutdown/low battery alarm, and the fact that the inverter draws idle power of less than 1 amp.

There is a NEMA-20R GFCI outlet located on the front panel which delivers the alternating current. And there is more, a control cooling fan which helps reduce energy consumption as well as a wide range of low interference operating DC.

Commercial grade and improved design for heavy-duty loads, long hours of operation and for emergency back-up. Universal Protection Circuit (UPC) for low voltage, overload, over voltage and short circuit.

PROS

• Comes with dual AC outlets (GFCI protected)
• Inbuilt UPC.
• Comes with a remote control (optional).
• 2 Years warranty.
• can be used to power virtually all electronics.

CONS

• None waterproof.
• Less than five years warranty.

 

7. Sunforce 1000 Watt Pure Sine Wave Inverter with Remote Control.

The Sunforce 1000 Watt pure sine-wave inverter converts Direct Current power into stable, clean and smooth Alternating Current power.

It’s great for powering and kinds of home appliances even the most sensitive electronics direct from your 12V battery.

This inverter is taken to be the best pure sine wave inverter for RV. This pure sine wave inverter will supply stable and clean power to run both small and large electronic electronics including air pumps, small motors, refrigerators and electronic doors that a modified sine-wave inverter cannot.

The 1000 Watt Pro Series pure sine-wave inverter produce clean-stable power with a very low harmonic distortion, hence no static or not noise.

This inverter can produce a surge power of 2000 Watts for some seconds if needed and a continuous power of 1000 Watts. This product is the perfect solution for power failure and emergencies.

Not only that, it guarantees optimum compatibility with computers, sensitive equipment, televisions, and motors but also perfect for use on boasts, at work sites and for use in solar power setup.

PROS

• Comes with a chain remote control to turn ON / OFF the inverter at distance.
• Comes with LCD display.
• Ideal for power failure emergencies.
• Automatically shutdown in the event of short circuits.
• Equipped with numerous ‘safety features’ like the overload alarm LED light, and a soft start system.
• Has a high-speed cooling fan.

CONS

• The cable terminals from behind are unusual.
• Line is relatively complex.

 

8. Easy Focus Portable 200Wh Solar Generator, 300W Pure Sine-Wave Inverter.

The easy focus power 200Wh Solar Generator works can be used to run both small and large electronic devices.

High frequency, High efficiency, stable technology and suitable for all kinds of loads. It can be used to power many household appliances without any interference.

The 300w pure sine-wave inverter comes with 3x100V/110V AC outlets. 4x DC outlets with an extra cigarette socket cable. 4x USB port. This inverter can be used to charge DC/12V, USB/5V and AC appliance anywhere anytime.

This inverter features 3 Ways Input Charging ports (Car cigarette DC12V/24V power, wall AC outlet power, and 18V 100 Watt solar panel.

The inverter is great for camping, weekend trips, emergencies or other special needs. This multipurpose power source is highly compact and portable, combines ‘outdoor rechargeable power’ supply a great built-in 12V18AH/200WH lithium battery.

The inverter also features key switch output, intelligent CPU control mode, surge protection and a powerful Emergency LED Flashlight which offers a light for cabins, camps and unexpected power outage.

PROS

• Easy to use and reliable.
• Has a handle for easy carrying.
• Three Ways of Recharging (Car AC, WALL, Solar).
• Pure sine wave.
• Additional accessory (MC4 Cord).
• Multifunctional Safety Protection: protect the generator and device safety

CONS

• The LED light flickers when connected to air
• Less than 5 years warranty.

 

9. Power TechON 3000W Pure Sine Wave Power Inverter

The PS-1004 is ETL certified Pure Sine-wave Inverter converts Direct Current into Alternating Current power that can be used to power household appliances a refrigerator, blender televisions and more. This inverter boasts of 6000 watts surge power and a continuous output post of 3000 watts.

The PS-1004 comes with a wired remote of about 15 feet and a starter pack of cables. From one side of the inverter, Chassis grounding, 3 AC outlet sockets, LED protection indicator, USB port, wired remote port and the switch are positioned.

This inverter is ideal for use on boasts, vessels, cars, power failure emergencies and during camping. The inverter is great and guarantees max. Efficiency with computers, electronic doors and other sensitive equipment. It is light-weight, compact and very powerful.

Among its features is the 5 Protection protection system (overload protection, thermal protection, low voltage protection alarm and under-voltage protection. It also comes with a LED light which indicates any problem.

In addition, your purchase comes with a remote switch, red and black cables with ring terminals, and a detailed instruction manual.

PROS

• Holds charge for a very long time.
• Ideal use in cars, and also great for power failure emergencies.
• Guarantees maximum efficiency with sensitive equipment, computers, and more.
• Has five Protection systems.
• It also comes with LED light to indicate any problem.

CONS

• The screw slots in the mounting-base do not extend far enough to the sides.
• High technically demanding for maintenance.

 

10. PowerBright APS1000-12 Pure Sine Power Inverter 1000 Watt

The super 1000 Watt 12-Volt pure sine wave inverter produces premium, clean and a stable power that is equivalent or in some cases even better than the one supplied by your local power station.

Plugs directly to 12 volt DC battery to power Televisions, laptops, small microwaves, small refrigerators, gaming consoles and other electronics.

The APS 1000 Watt multipurpose pure sine-wave inverter features a variety of safety features including LED light display, overload alarm, output overload, DC input overload, overload temperature, high-speed cooling fan and short circuit shutdown.

The inverter is highly advanced and equipped with 2 110v household electrical outlets. In addition, your purchase comes with an AC/DC power inverter ‘remote control modular connector cable’ and also a keychain remote.

PROS

• 1000 watts continuous power.
• Built-in Thermo Cooling Fan.
• 2000 watts peak power.
• Heavy Duty
• Anodized aluminum case provides durability.
• It’s handy

CONS

• The cabling is costly.
• The wireless battery doesn’t last long.

 

11. Ramsond SunRay 1500/3000 Watts True Pure Sine Wave Power Inverter Generator

Nearly a decade of research, development and real-world testing of the most demanding conditions have paid and yielded a world-class and series of the most sophisticated DC-AC Pure Sine-wave Inverters.

The Ramsond SunRay inverters are notably the most advanced and reliable pure sine-wave power inverter presently available in the Market.

The design, stability, functionality, affordability and reliability of the Raymond SunRay 1500/3000 Watts true sine wave inverters are like no other.

Extremely rugged and powerful, at the same they are strong and elegant in appearance. Above all compact, affordable and lightweight.

Has numerous displays and alarms specifically for working conditions. It is user-friendly. The characteristics of 1000 Watts SUNRAY model of pure sine-wave inverters make them suitable for all commercial, residential and industrial applications. The SUNRAY pure sine-wave inverter is tested and certified by safety standard.

PROS

• 1500 watt continuous and 3000-watt
• 3 high-speed thermostatically controlled fans.
• Digital led displays of input volts and output power
• Overload, over voltage under voltage, and overheat protection with automatic recovery.
• 3 standard three-prong
• Extruded high-quality aluminum exterior shell.

CONS

• Very costly.
• Sometimes the Lightning flicks from the output of the inverter from time to time.

 

12. AIMS 3000 Watt Pure Sine Power Inverter.

The AIMS 3000-watt pure sine-wave produces 3000 watts of power efficient enough to run even the most sensitive electronic device.

It is great for use in boats, camping, vehicles, and emergencies in the case where a backup power is needed urgently.

This inverter features a single USB outlet, along with a GFCI outlet and a ‘connect terminal block’ for harnessing the full inverter’s power. For that, it is considered to be the best 3000-watt pure sine wave inverter.

An additional but optional wired remote is also available for this unit.

In case of a sudden power outage, the inverter is installed with an automatic switch that instantly transfers you to the backup power (10ms max transfer time).

In a case where the utility Alternating Current power cuts-off or falls-out of the ‘acceptable range’, the ‘transfer relay’ is de-energized and as such, the whole load is transferred automatically to inverter mode. And once the Alternating Current power is restored, the relay is re-energized and hence, the load is reconnected automatically to Alternating Current bypass mode.

PROS

• Direct connect AC terminal block.
• Perfect for larger equipment.
• Overload and over temperature protections.
• Allows the smooth running of all electronic devices.
• Fully Conformal coated circuit boards for humid environments.

CONS

• No warranty.
• None waterproof.

 

What to Look For Before Selecting Pure Sine Wave Inverter

Inverter Type

As explained above there two types of inverters on the market. The pure sine-wave and the modified sine-wave inverter. If the purpose is to power small and less sensitive household equipment fans and TV’S, the modified sine wave inverter is affordable and sufficient to serve your needs.

However, if you wish to run larger appliances like Air conditioners, refrigerators or medical equipment, it is advisable you go for the pure sine-wave inverter. They are ideal and most recommended for long hours of continuous operation. However, the load sine-wave inverter may cost twice as a modified sine-wave inverter.

Inverter Size

The total wattage you need to post your electrical appliances determine the size of the inverter you will need to buy. And this can be avoided by calculating the total wattage of the devices you wish to power. This will give you. Clue of what size of the inverter you may need to purchase.

It is recommended you buy an inverter that is twice the size of the total energy requirements of appliances you wish to power. This will make sure you have an extra capacity and prevent the risk of overloading the inverter.

Safety Features

Various safety features like short circuit protection, audio alarm, overload protection, auto-reset feature, overvolt protection and under voltage protection are good to have in any inverter.

Battery Bank

Generally, batteries are required to store energy either from generator, DC from power station or renewable energy (solar panels). The essential part of the power backup system. The performance and longevity of the inverter largely depend on the quality of the batteries.

Battery Type

Even though most inverters used lead-acid batteries, the ones used in vehicles are not compatible with those of inverters. Because those batteries are built to deliver an exceptionally very high current for a short time e.g. starting ignitions of vehicles.

The dry cell deep-cycle batteries are ideal and more convenient for inverters. This is because they require no maintenance. They are perfect for home, small office use, or where regular battery maintenance isn’t possible.

These batteries come equipped with highly sophisticated designs to ensure electrical efficiency, increased lifespan and maintain of performance over a long period of time.

Inverter Battery Brands

There are myriad of ‘inverter battery brands’ available on the market, one major problem is that most of these batteries are low-quality batteries compared to those from the inverter battery manufacturers. It is recommended you get a battery from reputable manufacturers.

Inverter Efficiency and Battery Charging

The best and highly efficient inverters draw minimum energy from the gen or distro to fully charge your batteries. On the other side, inefficient types waste a large amount of energy for the charging process leading to the high electricity bill.

Warranties and Guarantees

Warranty simply means: the manufacturer is willing to give or provide some services including repairs and maintenance of some component for a given number of months or years, while guarantees a brand new replacement if faulty.

Battery Charging Time

Many but not all the inverters indicate the time for the battery to charge completely.

 

Frequently Asked Questions (FAQ) about Pure Sine Wave Inverter

1. What is Pure Sine Wave?

Pure Sine-wave is named the function “sine” (firstly, a mathematical curve). In electronics, pure sine-wave inverter simply means the “output voltage” is converted in a sine-wave form. More practically, in a sine-wave form the voltage alternates with a “sinusoidal curve” that has a smooth turning phrase angle. And when it falls to 0 Volt, voltage will change its polarity immediately without a pause.

2. What’s a pure sine-wave inverter?

A pure sine wave inverter is the type of inverter whose output voltage has a “sine wave-form” like that of the mains/utility voltage. In pure sine-wave inverter the voltage falls and rise and smoothly, with a steady changing phase-angle at the same time changes its polarity immediately when the voltage crosses zero.

3. What’s a modified sine wave inverter?

In a modified sine-wave inverter, the voltage rise and falls abruptly. Also the “phase angle” changes abruptly. in contrast to the sine wave inverter, the voltage sits at zero for some moment before changing its polarity, unlike the pure sine wave inverter where the polarity changes instantly as the voltage crosses zero.

4. What are the advantages of Pure Sine Wave Inverters?

Pure sine wave inverters have a lot of advantages over the modified sine-wave inverters in a number of ways. Some of this includes.

• The output voltage is a sine-wave form with a very low harmonic distortion, and also clean power like the one in our homes.
• prevent crashes and damages in computers, weird printouts and as well glitches in monitors.
• Reduces audible noise in fans, audio amplifiers, fax, TV, fluorescent and answering machines.
• Inductive loads such as microwaves and motors run quieter, faster and cooler.

5. Which device will not properly function with a modified sine-wave inverter?

Some of the devices which may not function properly with a modified sine wave inverter may also be permanently damaged. Some of this devices include photocopiers, laser printers, magneto-optical hard drives, while devices with inbuilt clocks like clock radios, coffee makers, alarm clocks, bread-makers, microwave ovens and VCR may not keep time correctly.

Output voltage control devices such as ceiling fans, dimmers and motor speed control may not function properly.

Sewing machine with speed microprocessor control, flashlights, smoke detectors night-lights, and Re-chargers for battery packs also may not work properly. High-intensity discharge lamps such as the metal halide lamps may be permanently damaged.

6. When is a Pure Sine-wave Inverter necessary?

While a modified sine-wave inverter will efficiently get all the job done, there are some instances where it may be inefficient or may cause some damages. Some category of electronic devices that run efficiently with a pure sine-wave inverter like compressor, refrigerators and microwave ovens, will work in most cases with a modified sine-wave inverter but may not function efficiently and this may lead to overheating and potential damages.

If you use a ‘CPAP’ machine, especially the one that includes ‘a heated humidifier,’ then a pure sine-wave inverter is the best to use to avoid damaging the units.

7. When is a Pure Sine-wave Inverter not necessary?

If you have devices that use ‘rectifiers’ to convert Alternating Current to Direct Current, then you may probably not need a pure sine-wave inverter. I didn’t mean it won’t be good for you, just that it may not be necessary. A pure sine-wave will also work fine with these devices. If you have money and you don’t mind spending just for extra peace of mind. Then there is nothing wrong with buying one.

However, myriad of electronic devices work efficiently with a modified sine-wave inverter. These include cell phone chargers, laptop computers, and other less sensitive equipment that uses rectifier to take an Alternating Current input and output Direct Current to the device will also work just fine with or without a pure sine-wave inverter.

8. Which type is suitable for you?

Economical modified sine-wave is more suitable for users who just need to run TV, light bulbs, microwave oven, and other less sensitive tools. While pure sine-wave inverters are great for all appliances.  Also ideal for sensitive electronic devices like computers, laptops, stereos, laser printers, and other specialized equipment like medical equipment.

Conclusion

Modified Sine-wave (MSW) Inverter is sometimes sufficient to run most electronic devices such as (‘resistive load’ like a light bulb or ‘simple induction load’ like a motor) with only few exceptions e.g. a typical digital clock. Some of these clocks use ‘microprocessors’ with simple algorithm to calculate time and as such will not work efficiently.

Other issues may occur when using  (MSW inverters)  to run devices like laser printers, coffee makers electric blankets and other devices that regulate heat using a microprocessor which may not work properly.

Finally, MSW inverters are less expensive than Pure Sine Wave inverters and can still be used in simple systems. But with the advancements in technology, PSW inverters are more efficient and their cost is falling down making them more affordable and in fact, the better options. We hope this piece guides you to the best pure sine wave inverter available on the market.