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Fit4Less

DC 12V to AC120V Pure sine Wave Power Inverter 300W with Dual sockets Output and DC 5V 2Amp USB Output. Ideal for Most Small Power appliances. (300W) Blue

  • Based on 164 reviews
Condition: New
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Availability: In Stock.
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Arrives Nov 11 – Dec 13
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Size: 300W


Features

  • Provides 300 Watts continuous DC to AC power, featuring 2 AC outlets and 1 USB ports for multi-purpose charging.
  • Dual 110V AC outlets for charging larger devices such as laptops and tablets, USB charging port for powering USB compatible devices. High Surge Current Capability to Star TVs, Motors and Other Inductive Loads.
  • Compact Size, Light Weight, and High Efficiency: ideal design for use on vacations, work trips, and camping
  • Multi-Protection: Safe charging design provides protection against overheating, under and over voltage charging, short circuiting, overloads, and overcharging.
  • Built-in Cooling Fans help reduce heat and prevent shortages. Durable metal housing provides advanced protection from drops and bumps. Quality guarantee and Sincerely e-mail support.

Description

Cautions This is not a toy, keep out of reach from children Never connect the inverter to AC distribution wiring Do Not × Install near flammable materials × Use or make connections in mark or designed as IGNITON PROTECTED × Expose to rain, snow, water, or any other liquids × Use with positive ground electrical systems × Plug foreign objects into the receptacles × Open,there are no user serviceable parts inside Specifications Max Continuous Output:300W Peak/Surge Capacity:600W Normal Input Voltage:12VDC Input Voltage Range:10-15VDC Max Efficiency:90% Output Voltage:110-120VAC Output Frequency:60Hz-+2Hz Output Waveform:TRUE SINE WAVE Low Voltage Shutdown: 10.5+-0.5V Over Voltage Shutdown:15.5+-0.5V No Load Current Draw:<0.3A Features √ Low Battery Automatic Shutdown √ Overload and Short Circuit Protection √ Reserve Polarity Protection(by fuse) √ Compact Size, Light Weight, High Efficiency √ High Surge Current Capability to Star TVs, Motors and other Inductive Loads √ Thermal Protection √ Built-in Cooling Fans √ Soft Start Technology Package List 1 x 300W Pure Sine Wave Power Inverter 1 x User Manual A set of alligator clip cable A cigarette lighter plug cable The case blue color may have a slightly difference as for different batches but they are the same functions and same quality!

Brand: Fit4Less


Recommended Uses For Product: Vehicle


Power Source: Corded Electric


Wattage: 300 watts


Battery Capacity: 50 amp_hours


Power Source: Corded Electric


Wattage: 300 watts


Battery Capacity: 50 amp_hours


Voltage: 12 volts


Number of Outlets: 3


Input Voltage: 12 volts


Output Power: 300 watts


Standby Power Shutoff: 90


Output Voltage: 120 volts


Peak Output Power Watts: 600


Inverter Capacity Volt-Amp: 300


Electrical Output Waveform: Pure Sine Wave


Frequency: 60 hertz


Item Dimensions L x W x H: 8.39"L x 4.96"W x 2.17"H


Item Weight: 2.3 pounds


Brand: Fit4Less


Antenna Location: Vehicle


Model Name: 300W


Built-In Media: cigarette lighter plug cable, alligator clip cables, spare fuse.


Model Number: af56a52e-889d-479b-bbb3-2ebd835297c2


Number of Items: 110


UPC: 719209240246


Manufacturer: Fit4Less


Mfr Part Number: EL-300P


Color: blue


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 11 – Dec 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

    • This inverter has performed well during a year of non-stop service
Size: 300W
This unit was purchased to nun non-stop at about 1/3 capacity, with periodic jumps to 150 Watts. It was also able to self-start when battery voltage was removed and then restored. I have temporarily removed it from service for inspection after an 11-month run. It will be returned to service in a few days. The AC output is still very close to 120 Volts and 60 Hz, and the sine wave output looked good when I checked it with an oscilloscope. Its operating environment was conditioned to 85 degrees F during the summer. Winter temperatures could fall to near freezing. The enclosure becomes slightly warn when powering a 65-Watt load, so efficiency is good. It has provided power to several computers and two VHF and UHF transmitter/receiver devices. Impressive performance for such an inexpensive AC inverter. ... show more
Reviewed in the United States on February 3, 2026 by PR
    • From Home to Auto
Size: 300W
Threw my old Sony powered subwoofer in the back of the ML430 with a new head unit drawing 225 rms i need a pure sign wave to keep the tunes sweet, this small unit works perfectly to supply 110 volts a/c to my subwoofer, helps punch up the bass substantially.
Reviewed in the United States on January 5, 2026 by J.C. Lovan
    • GREAT UNIT!
Size: 300W
It works better than a similar 500 WATT model. The 500 watt unit fan runs ALL THE TIME and it will NOT run the air pump to inflate an airbed! This one works flawlessly! Great Product. In fact I AM buying another one.This will be my third. I WANT SPARES for the future and I use one dedicated to my of grid fridge! God bless and be well! ... show more
Reviewed in the United States on September 6, 2021 by E
    • This IS a Sine Wave Inverter - Keep wires to battery short, or it will not work as expected..
Size: 300W
Review Image by James Richters
Review Image by James Richters
Review Image by James Richters
All of these kinds of inverters need a VERY good HIGH current connection to your battery. If your wires are too long or not a heavy enough gauge, then you end up with too much of a voltage drop in the wires and it's impossible for any inverter to supply the rated power. It will work for light loads, but then the demand gets higher, it will read the voltage drop as an under-voltage input as it should and shut down. You are taking 12 Volts and stepping it up to 120 Volts, and power is power, so if you only have 12 Volts and you want to get 300 Watts, you need 25Amps, and you need the 12 Volts AT THE INVERTER TERMINALS while it's pulling 25 Amps. If it drops down to 10 Volts due to the resistance of the wire, it's not going to work. If you need to supply the surge, then you need heavy enough wire to supply the ENTIRE Surge, This inverter has a surge capacity of 600 Watts, so you need heavy enough wire to supply 50 amps to this and keep the voltage drop down as low as possible, otherwise, when the surge happens, the voltage drop will cause an undervoltage condition. It should be noted that there is NO WAY that the included cigarette lighter cord could have a chance of supplying 50 Amps to this!! I wanted this in the back of my truck and use the auxiliary connection back there to run it, then feed the 120V back up into the cab. The auxiliary connector is fused at 50Amps, so I thought that would be sufficient, and while it could provide 50Amps, the gauge of wire built into the truck was not heavy enough to supply the power needed to end up with 12V at the inverter terminals while supplying the surge. I wanted to use this to run an ice machine in my truck, which needed 500 Watts for about 2 seconds to start the compressor, then 100 Watts while the compressor was running. So even though I was on a circuit rated at 50Amps, I could not keep the voltage at the inverter high enough during the start surge. I did not feel like running new wires, so what I did was put another battery in the back, and hooked up the inverter to that using the wires it came with (not the cigarette lighter plug, that is useless). With short wires connected to the battery it was able to start and run the compressor with no problems. Since it's only the starting surge that really needs the battery, I was then able to use my original connection to keep the other battery charged. This second battery ends up being nice because not only does it supply the start surge, but it allows me to run the inverter when the engine is not running without risk of draining the battery so much, I can't start the vehicle. Unfortunately, this unit was giving me a warning beep while my compressor was running, so I thought I better go to the next size up, which has a capacity of 600 Watts and as 1200Watt surge, and it didn't cost that much more. That one came with heavier cables, I bet if I put the heavier cables on this one, it would have been fine. Edit: I was reading other reviews about this and some claim this is not a sine wave inverter, so I thought I don't want to give a 4 star review if this advertised as Pure Sine Wave and it is not, SO I went to verify this claim on my own, since I am an electronics engineer with a bachelor's degree and over 3 decades of experience, and of course I have many oscilloscopes, I am more than qualified to make this test. So I used a soldering iron as a load, since it is mostly a resistive load, and hooked up the test, using a fully charged battery and connecting only the battery to the inverter, and then plugging in the soldering iron, and hooking up my x10 probe to the line output, and of course hooking up ground to neutral, which I can do because this is entirely floating as the battery has no connection to ground, and I was astonished then right there on my Oscilloscope screen was an undeniable SINE WAVE!!! It's NOT a modified sine wave at all, it's a pretty good PURE SINE WAVE. It has a few minor glitches in it as you can see in my photo, but for the price, it's pretty darn good, and those glitches can't possibly make any difference at all, especially in anything like a computer that does not directly use the AC anyway, it's all rectified and regulated to DC so the exact shape of the sine wave could not ever make any difference at all, and in fact the sine wave provided by this is CLEANER than the sine wave provided by my utility company! There is a simple way that an oscilloscope can show what looks a square wave... when the input is a sine wave... if you forget to switch the probe to x10 then in fact since you would be then exceeding the voltage capacity of the oscilloscope, you will get some kind of square wave on your display... but there is NO Way to make a scope display a sine wave when there isn't one. ... show more
Reviewed in the United States on October 25, 2023 by James Richters
    • Internal hardware failure
Size: 300W
Lasted six months before I experienced a hardware failure fault. Performed all the diagnostics as per the manufacturer. The problem is internal and the inverter is bad. Only a 90 day warranty on this product. It looks like? Very disappointed in the quality and performance.
Reviewed in the United States on May 30, 2026 by Rob Edinger
    • Must have for camping and cars
Size: 300W
Useful tool for DIY. Give about 250w output. powering a table fan and 2 5w regular light bulbs for about 7 hrs. Depends on the battery for camping. But for RV and boats and cards it can easily charge a laptop and phones
Reviewed in the United States on June 13, 2026 by santosh G
    • Advertises Sine waves, produces Sine waves.
Size: 300W
Review Image by Javier Pazo
Review Image by Javier Pazo
Review Image by Javier Pazo
Does exactly what it advertises. Put out a perfect 120v 60Hz sine wave. It draws a relatively low 0.17A idling(2.3W), which is far better than my Harbor Freight modified sine wave inverter that draws 0.65A(8.8W) at idle. So long as it doesn't unexpectedly die on me, this looks to be a great inverter. ... show more
Reviewed in the United States on July 20, 2025 by Javier Pazo
    • Great for powering small electronics
Size: 300W
Nice small inverter I have wired to a 100ah lifepo4 battery powering my modem and router. It keeps them running when the power blinks or when it goes out for a few hours. I keep a small 15a lithium battery charger connected to recharge the battery when the power comes back on.
Reviewed in the United States on July 13, 2025 by Danny H.

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