4000 Watt Inverter Pure Sine Wave Power Inverter 12V to 110V 120V AC, 7000W Surge Peak Power for 2 Seconds, FCC Approved, Compatible with Lithium Battery, for Car Off-Grid Solar RV Vehicle VOLTWORKS
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Availability:
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Arrives
Thursday, Jun 4
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Set name: 4000W
Features
- 4000W Pure Sine Wave Inverter with 7000W Surge Peak Power for 2 SecondsThis is 4000W continuous output power inverter pure sine wave with 7000W surge peak power which is able to last 2 seconds, and very suitable for high-power inductive loads, such as air conditioning, double door refrigerators, water pumps, heaters, and other electric tools. Superior pure sine wave technology with very low no-load loss and allows for continuous operation of high power appliances for extended periods and providing high quality AC power comparable to home power for your sensitive appliances.
- New Upgraded Adjustable Input Voltage Function- The new upgraded 4000 watts pure sine wave inverter comes with an adjustable input voltage function, making it more compatible with lithium batteries. This capability reduces battery draw, protects battery health, and extends your battery life. (Please refer to the manual to customized input voltage)
- LCD Display and Screen RestThe LCD display shows the batteries status, input dc voltage, output ac voltage, load watts and some protection codes. After one minute of no operation, the LCD screen will shut down. LCD is very convenient to know the usage status of the inverter.
- Remote Controller & USB Fast ChargerThe 30ft 4P4C RJ10 remote controller is more convenient for you to turn inverter on/off in distance. The battery level monitor remote controller prevents battery over-discharge and prolongs battery life. PD36W USB-C and 3.6A USB-A two different types of USB are very convenient for us to charge and power smartphones, entertainment devices, small-sized appliances, and other mobile devices, such as floodlights, TVs, laptops, tablets, etc.
- Upgraded 8 Advanced Protections4000W pure sine inverter including Short circuit protection, Input over-voltage/under-voltage protection, Output short-circuit protection, Over-load protection, Over-temperature protection, Low-input alarm. And upgraded Low-Output Voltage Protection also provide more stable voltage protection to your loads.
- Advanced Inverter MaterialsThis 4000 watt inverter pure sine wave chose durable large shell aluminum alloy case, much better the power inverter from drops and bumps, also provides better heat dissipation than other inverters. Built-in ETL listed transformer, UL458 listed fuses, UL458 listed PCB, also protect you from fire and electric shock.
- More Widely UsedWidely applications for Indoor and outdoor uses- Ideal for Cars, RVs, Boats, Off-grid solar and power failure emergencies with this 4000W heavy duty inverter, equipped with 4*AC outlets with a 40A hardwire terminal for high power appliances, such as a/c, microwave, coffer maker, frezzer, fridge, laser printer, etc. And this 4000 watt power inverter has been FCC approved, providing advanced anti-interference technology and pure sine wave to your AC appliances such as speaker, radio, and other radio related appliances.
- What You Get An 4000w pure sine wave inverter, a 30ft remote controller, a instruction manual, 4 pairs of Battery Cables, a friendly and patient customer after-service. 18-Months Warranty. Product liability insurance is covered by AIG insurance company.
Brand: VOLTWORKS
Recommended Uses For Product: Home, Car, Power Outage, Vehicles, Truck, Outdoors, Boat, RV, Trip, Off-Grid Solar
Power Source: Solar and Battery Powered
Wattage: 4000 watts
Model Name: VS-4000KAR
Power Source: Solar and Battery Powered
Wattage: 4000 watts
Voltage: 120 Volts (AC)
Input Voltage: 12 Volts (DC)
Output Power: 4000 Watts
Standby Power Shutoff: High effiency up to 91%
Output Voltage: 120 Volts (AC)
Display Type: LCD
Peak Output Power Watts: 7000
Electrical Output Waveform: Pure Sine Wave
Item Dimensions L x W x H: 14.3"L x 8"W x 6.8"H
Energy Specifications Met: FCC, UL
Brand: VOLTWORKS
Antenna Location: Home, Car, Power Outage, Vehicles, Truck, Outdoors, Boat, RV, Trip, Off-Grid Solar
Model Name: VS-4000KAR
Model Number: VS-4000KAR
UPC: 797439146873
Warranty Description: 18-month warranty from the date of purchase
Unit Count: 1.0 Count
Manufacturer: VOLTWORKS
Color: Blue
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jun 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Set name: 1500W
In a sea of look-alike inverters from unknown brands on Amazon, how does one decide what to buy? This is a detailed review of a Voltworks 1500W continuous (3100W 2 sec peak) inverter, why I bought it and how it has performed over the first month. Why Voltworks: I chose this company as it has been around for several years and has an online reputation for producing decent products and standing behind its 18-month warranty. I believe that it also manufactures Giandel and Leesky inverters, offered with slightly different features and prices. Though my inverter has had no problems so far, I asked customer service several questions and received answers within a day or so. “Alice” was clearly not reading from a call-center script, with detailed replies to difficult questions. In the box: The cardboard box has internal foam for protection, and includes the inverter, cables, remote control, spare fuses, and user manual packed neatly. The inverter itself measures approx. 8x13x4”, weighs 8.6 lbs, and appears solidly built — all metal and with heat-disippating fins all around. The 2’ red and black battery cables are paired 16mm2, which works out to almost 2AWG, i.e., better than the 4AWG cables in the Amazon listing. The wired remote control has 4 screws for attachment, 2 each of 2 types for use on different surfaces, and 3 spare 40A fuses are also included. A sheet of paper states that included pads are to be attached to the inverter base plate, but mine came with 4 cushioned pads already installed. Initial start-up: A key thing to remember is that before using it for the first time (or after a long period of no usage), the inverter must be run without a load for 30-60 minutes. This is to allow the capacitors time to charge properly, otherwise one risks the possibility of an explosion or reduced life expectancy. After an initial 30-minute warmup, the inverter did make some sound on the first load test, but quieted down on subsequent trials. Loads tested: I am using it in a house emergency generator system powered by my Toyota Prius, whose 12V circuit can spare a continuous 1200W at best, far below the inverter’s 1500W rated capacity. It is good practice to select an inverter rated 25% above its anticipated load anyway. With some combination of full-size fridge, small space heater, rice cooker, fans and lights (not all at the same time), I tested continuous loads up to 900W and initial surges well above that when appliances were turned on, as measured by a watt meter that shows range. I did not test the USB or hardwired outlets. System controls: The inverter’s low voltage cutoff system worked as stated in the manual, switching off momentarily at the voltage I set and restarting seconds later when the voltage had increased to normal levels. My setup does not need the remote control with 15’ cable, but it worked fine. The inverter’s fans were not noisy, and turned on only when the load or temperature exceeded certain levels. The approx. 1”x4” display has lots of data but was easy to read, and output wattage shown was consistent with that of my external watt meter. Connections: Input cable connections are covered with plastic caps for protection from shorts — a nice touch, though it means that cables to the battery can exit in only one direction if the (optional) caps are used. I spliced an additional cable to the included 3’ 14AWG ground cable and connect it to the earth with an aluminum tent peg. Note that per a Voltworks online video, opening the inverter to replace fuses requires unscrewing the output side plate’s 4 screws and sliding out the center panel of the top plate, after disconnecting the cable feeding the display. I am not sure this will be quite as easy as demonstrated. Potential improvements: * The almost flush, black power switch on the black side plate is hardly visible, especially in low-light emergency conditions, and should be a brighter color. * The 28 page user manual is far better than those of some competitors. However, it does have several errors; I was told that an updated version is being rolled out. * The included battery cables, while adequate, do not match the quality of Voltworks cables I purchased for use elsewhere in my system. Those are rated for 105C, with thicker and better-finished heat shrinks, and smaller 10mm lugs. Conclusion: All in all, I am pleased with this purchase and will rate it 5 stars for initial product quality and responsive customer service. I hope this review has been helpful, and commit to updating it as my experience warrants over the next few years.
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Reviewed in the United States on September 1, 2025 by CDS
Set name: 2000W
Works great with my 2000watt power station with 2 100ah batteries
Reviewed in the United States on April 7, 2026 by David
Set name: 2000W
Installed this 2000 watt inverter to test and compare to a low frequency 2000 watt pure sine wave inverter. Overall works good. Some positives: low idle power 3 watts vs 40 for the low frequency. Runs an 18 cf refrigerator at 26 watts vs 60 for the low frequency. Haven't tested a 1100 watt microwave yet or tried my air compressor both of which the low frequency run. A few minor negatives: M6 studs for DC input need to be M8 at the smallest. Cables are marginal, I prefer 2/0 when pulling 145 amps to run a 1100 watt microwave.
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Reviewed in the United States on January 8, 2026 by Amazon Customer
Set name: 3000W
It worked good. I love it.
Reviewed in the United States on March 26, 2026 by Rafael Diaz
Set name: 2000W
Works great. Nice and quiet and uses little energy for the size.
Reviewed in the United States on February 20, 2026 by Daniel Miller
Set name: 1000W
Great inverter! I got this for my solar power system camping setup with my two 100 amp LiFePo4 batteries to use for cooking with a 110 volt induction stove (440 watts) and water kettle (400 watts). I needed pure sine wave power, and this unit delivers exactly what I need! It makes very little noise (fan) when operating - not noticeable. It gives very clear readouts on the LED display, and is easy to install and operate. I highly recommend this unit. As far as I’m concerned, this is the best inverter in this power range for the money!
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Reviewed in the United States on April 14, 2026 by Dale Stewart
Set name: 1000W
Having already purchased the 1500W Pure Sine Wave Inverter for a work truck, I opted for the 1000W PSW for my daily use SUV. Both inverters have performed exceedingly well. I don't have a need for the full output wattage of either of the inverters but I had two reasons for buying the excess power. 1. I didn't want to have a cooling fan whirring in the background while making phone calls over bluetooth. 2. I often operate audio equipment which can have a momentary high power draw. During daily use, the cooling fans have not activated on either of the inverters. I did perform a test with a heat gun and soldering iron plugged in to verify that the fans would activate when needed. I took some photos of that condition but I didn't realize that I had been dropping sweat onto the LCD display and made it unreadable in some of the photos... hot summer days. The fans are not loud but are noticeably audible. A very cool feature of having the inverter in the cabin of your vehicle is that it's like having the actual car battery at your fingertips. I added taps to the terminals of the inverter and connected them to the reverse-gear signal of my double-din stereo, with a multi-position switch in-between. I can now use the switch to alternate between my vehicle cameras on demand. The wiring is easily concealed and didn't require disassembling the dashboard to tap into the vehicle 12-volt lines. I no longer think of my vehicles having a 12-volt limitation and it's now 2nd nature to simply plug in any power tool, lighting accessory, or audio component without concern. The Pure Sine Wave is a must for audio equipment and power tools benefit as well. I own a DeWalt 1000W Modified Sine Wave inverter and it's now sitting on a shelf. I can hear a difference in a metal grinder running with the Pure Sine Wave inverter and feel the tool doesn't get hot as it does with the Modified Sine Wave inverter. I run the inverters for a couple of hours continuous use each day and neither of them have shutdown, blown a fuse, or drained my truck battery. The customer service at VoltWorks is unmatched. They reply right away to an email inquiry and are very solution-minded. With solar panel projects in my future, the reliable customer service at VoltWorks means they will be my first choice for inverters.
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Reviewed in the United States on July 23, 2021 by A-Mac