12v 300w Inverter, 12v to 110v/220v Power Inverter

Low price 12V power inverter delivers 300 watt continuous power and 600 watt peak power, converting 12V DC from battery or car lighter to AC 110V or 220V household power, with USB port and universal outlet for fast charging the electronic devices. This DC to AC inverter has multi-protection function and built-in cooling fan to protect your device from the damage.
SKU: ATO-M300W-12
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Delivery date: 6-12 days
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300W DC to AC inverter converts 12 volt to 110/120 volt 60Hz or 220/230 volt 50Hz with multi-protections against low voltage, high voltage, over load, over heating, short circuit and reverse connection, ideal for charging mobile phone, laptop, iPad, kindle, digital camera, fan, light, etc., on road trips, vacations, camping or anywhere power inverter is needed.

300W 12V Inverter Specification

Model ATO-M300W
Input Voltage DC 12V
Output Voltage * 1-Phase (L, N, G) 110V/120V AC ±5% or 220V/230V/240V AC ±5%
- NOT provide split phase configuration (L1, L2+N, G)
Unload Current (less than) 0.3A
Continuous Power 300W
Peak Power 600W
Output Frequency 50Hz±0.5Hz or 60Hz±0.5Hz
Output Waveform * Modified sine wave or Pure sine wave
Max. Efficiency 90%
USB Port 5V 1A
Outlet Type * Universal outlet *1
Input Voltage Range 10V-15.5V
Low Voltage Alarm 10.5V±0.5V
Low Voltage Protection 10V±0.5V
High Voltage Protection 15.5V±0.5V
Overload Protection Yes
Overheat Protection Yes
Short Circuit Protection Yes
Reverse Connection Protection Yes
Cooling Method Intelligent cooling fan
Working Temperature -10℃ ~ +50℃
Storage Temperature -30℃ ~ +70℃
Product Size 195x115x60mm
Net. Weight 730g
Warranty 1 year
Remote Control * Wired control (3m) or Wireless control (20m)
-Wired control ONLY applies to pure sine wave inverter

Note: * The AC output is 1-Phase (L, N, G), NOT Split Phase like USA standard (L1, L2+N, G).

Output Sockets (Optional)

Power Inverter Sockets

Protection Function

Multi-protection of power inverter

  • Low voltage
    Alarm at first; voltage continuously reduce, LED Red light on & shut down.
  • Over voltage
    LED Red light on, shut down
  • Over load
    LED Red light on, shut down
  • Over temperature
    Alarm at first; temperature continuously rise, LED Red light on & shut down.
  • Short circuit
    LED Red light on
  • Input reverse polarity
    Fuse burn-out

Power Inverter Applications

Modified sine wave power inverter applications

Tips: Power inverter conversion efficiency

As a very important index of power inverters, the higher conversion efficiency, the longer battery life and the less heat generated by power inverters. Conversion efficiency is the ratio of output watt to input watt, the closer this number is to 1, the better its efficiency is. In general, the efficiency of inverters is more than 80%-90%, that is, input power 300W and output power 240W-270W, so the inverter itself consumes nearly 30W-60W of power. Conversion efficiency can be divided into no-load and full-load. Without load, the components in the inverter operate at the lowest power, which can generally be as high as 90%. However, it can be considered as a good inverter with the conversion efficiency as high as 85% at full load. Therefore, it can simply judge the conversion efficiency from the heating of power inverters by high-power load. The greater heat dissipation, the greater energy loss and the lower conversion efficiency.

Products specifications
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User Manual

PDF Power Inverter User Manual

Existing reviews
High quality power inveretr
I bought this power inverter for my car. The 300w inverter arrived early than I expected and was well-packaged. The power inverter was convenient for my life. I am happy with this purchase.
Beta L | 3/15/2023 3:14 AM
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Worked as advertised
I installed this 300W inverter into my RV so that I could use the TV and microwave at times. I went on a three week trip and it worked like a charm.
Glenda Johnson | 12/8/2022 11:59 PM
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Fabulous car accessory
I buy 300W inverters for trips so my kids in the back seat can plug in their devices. The inverter works great! My personal experience tells me not to plug in high-power stuff (I tried an air fryer for the tailgate - not the smartest idea)
Rous PORA | 10/25/2022 3:09 AM
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Power inverter works as described
I checked out the reviews before Inverter and decided to trust this inverter and upon receiving it, it did not disappoint me, I needed a source to keep our propane furnace fan running. It works very well.
Alfred Angle | 6/27/2022 12:34 AM
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Good 12V 300W inverter
I bought this 12V 300W inverter on to replace my previous inverter. This 300W inverter works very well, better than I expected. I use this 12V 300W inverter to charge my laptop. Highly recommended!!
Chobe Edward | 6/20/2022 2:58 AM
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Sensitive and stable power inverter
I bought this power inverter for the travel trailer at home and the effect is very good after use. It can convert the direct current of the battery into alternating current and has multiple protection functions. Its built-in cooling fan can protect the equipment from damage. Electrical appliances such as hair dryers and microwave ovens can be used. The inverter has a large functional wall with plugs and sockets, which can charge your mobile phones and computers at any time.
James Rebert | 9/10/2020 12:33 AM
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All in all, very satisfied with this 300w inverter.
Arrived in time and well packaged. I got this 300w power inverter for use on my way to work. Chosen with pure sine wave that cost higher than the modified one, but it does not damage my electronics when charging. Also very convenient with USB port, thus I can power my phone via plugging in it directly. All in all, very satisfied.
Nicola S. | 12/9/2019 7:22 PM
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I purchased this 300w inverter to replace my old one.
I purchased this 300w inverter to replace my old one. I travel a lot by car and each time I will double check if the inverter comes with me as I’m always afraid that my cellphone, laptop, and iPad run out of power on the road. With this item, I have not to worry much about that. I have carried this new power inverter for 3 times of road trip and it worked as expected. Hope it can accompany me for the more trips.
Thomas Gilbert | 10/30/2019 7:19 PM
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