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    500 Watt Pure Sine Wave Power Inverter, 12V DC to 220V AC

    5 out of 5 based on 6 reviews | Write a review
    500W continuous and 1000W peak power inverter outputs pure sine wave, has universal selections of DC input 12V/24V/48V, and AC output 100V/110V/120V/220V/230V/240V, 50/60Hz, ideal DC to AC inverter for car and home use with buit-in fuse, LED indicator & low-noise intelligent cooling fan, full protections for your devices from damage.
    SKU: ATO-PI-500W
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Cheap 500 Watt pure sine wave power inverter offers input voltage 12V/24/48V DC and output AC 110/120/220/240V for your choice, with universal AC household outlet and USB port, suitable for powering the electronics or appliances at home, in the car, on the camping or other outdoor activities.


    • Provides 500W continuous DC to AC power and 1000W surge power
    • Pure sine wave inverter, capable of producing clean & stable electricity
    • Soft-start technology
    • USB charging port for powering your phone, laptop, etc.
    • Aluminum alloy casing with good heat dissipation
    • Multiple protections against under and over voltage, over load, over temperature, short circuit and input polarity reverse connection
    • ON/OFF switch design, easy to use
    • Intelligent cooling fan, long working life

    Note: Refrigerators or devices similar to refrigerator loads need to choose an inverter with a power of more than 10 times.


    Model ATO-PSWI-500
    Output Power 500 Watt
    Peak Power 1000 Watt
    Phase 1- Phase (L, N, G), Do Not provide split phase configuration (L1, L2 + N, G)
    Input Voltage* DC 12V DC 24V DC 48V DC 12V DC 24V DC 48V
    Input DC Voltage Range 10-15.5V 20-31V 40-61V 10-15.5V 20-31V 40-61V
    Output Voltage* 100V AC or 110V AC or 120V AC ±5% 220V AC or 230V AC or 240V AC ±5%
    No-load Current (less-than) 0.6A 0.4A 0.3A 0.6A 0.4A 0.3A
    Output Frequency* 50Hz±0.5Hz or 60Hz±0.5Hz
    Output Wave Pure sine wave
    Waveform Distortion THD<3% (linear load)
    USB Port 5V 1A
    Outlet Type Universal outlet
    Max. Working Efficiency 90.0%
    Low Voltage Alarm 10.5V±0.5V 21V±0.5V 42V±1V 10.5V±0.5V 21V±0.5V 42V±1V
    Low Voltage Shutdown 10V±0.5V 20V±0.5V 40V±1.5V 10V±0.5V 20V±0.5V 40V±1.5V
    Low Voltage Recovery 13V±0.5V 24V±0.5V 48V±1V 13V±0.5V 24V±0.5V 48V±1V
    Over Voltage Shutdown 15.5V±0.5V 31V±0.5V 61V±1V 15.5V±0.5V 31V±0.5V 61V±1V
    Over Voltage Recovery 14.8V±0.5V 29.5V±0.5V 59V±1V 14.8V±0.5V 29.5V±0.5V 59V±1V
    Protection Low voltage, Over voltage, Over load, Over temperature, Short circuit, Input polarity reverse connection
    Cooling Way Intelligent air cooling
    Remote Control* Wired control (2m) or Wireless control (30m)
    Operating Temperature ﹣10℃~ +50℃
    Storage Temperature ﹣30℃~ +70℃
    Humidity ≤90%, non-condensing
    Dimensions (W*H*D) 250*106*63mm
    Package Size (W*H*D) 295*160*80mm
    Net./Gross Weight 1kg/1.3kg
    Certificate CE, RoHS
    Warranty 12 Months



    500 Watt Pure Sine Wave Power Inverter Details

    Wiring Diagram

    12V 24V pure sine power inverter wiring
    Note: The wiring of 48V inverter is similar to the 24V inverter, and the batteries are connected in series.

    Protection Functions & Applications

    pure sine wave power inverter protectionsPure sine wave power inverter applications

    • Reverse Polarity Protection
      Auto protection when input positive and negative polarities are reversely connected – The fuse blown out.
    • Short Circuit Protection
      Automatically self-protect when short circuit occurs – Red LED light ON.
    • Low Voltage Protection
      Automatically protect when in low voltage – Alarm first, the voltage continuously reduces, the red light is on and the inverter shuts down.
    • Over Voltage Protection
      Automatically protect when in high voltage – Red LED light is on, and the inverter automatically shuts down.
    • Over Temperature Protection
      Automatically self-protect when at high temperature – Alarm first, the temperature continuously rises, the red light is on and the inverter shuts down.
    • Overload Protection
      Automatic self-protection when there is overload – Red LED light is on and the inverter automatically shuts down.

    Tips: Why the power inverter alarms when plugged to the car cigarette lighter, or the inverter sounds an alarm with running a load?

    There are serveral reasons regarding the power inverter alarming in such situations:

    1. The aging of the car lines.

    2. Poor connection between the cigarette lighter and the battery.

    3. The connection wire between cigarette lighter and the battery is too thin.

    4. There is an oxide layer on the contacts of the cigarette lighter, causing poor contact.

    5. The wires from cigarette lighter to the battery are relatively thin, unable to bring a lot of load.

    In this video, ATO makes a simple test on the input and output voltage of 1000W 24 DC to 220V AC pure sine wave power inverter. And, this power inverter is used to power a cell phone and a fan which work normally.

    How to Diagnose Inverter Problems and Repair
    An inverter is a power conversion device. The basic working principle of an inverter is to convert direct current into high-frequency, high-voltage alternating current through pulse width modulation (PWM) technology. The core part of the inverter is a PWM integrated controller, which is responsible for generating PWM signals and converting DC power to AC power through MOS switching tubes. A blown fuse is one of the most common reasons why an inverter has no output. This video will show you how to perform a simple diagnosis of a failed inverter and how to fix the problems.

    Existing reviews of 500 Watt Pure Sine Wave Power Inverter, 12V DC to 220V AC
    For my mini fridge
    This 500 watt pure sine wave power inverter is too useful for me. I use this pure sine wave power inverter a lot to charge my mini fridge. I hope it will last a long time.
    From: Farrah | Date: 05/12/2022
    Was this review helpful? Yes No (0/0)
    Is the output of the pure sine wave inverters instant-on or delayed-on?
    I'm planning a whole-house system and would like to dedicate one inverter to the well pump, and control the inverter input with the pressure switch.
    My question is this: Is the output of the pure sine wave inverters instant-on or delayed-on?
    If the pump is plugged into the inverter at all times and the DC to the inverter (12V, 24V, or 48V) is switched by the well pressure switch (mechanical contacts), is that going to cause problems?
    From: Jasper | Date: 27/07/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, our pure sine wave inverter can work as described below. Its output is instant-on with no delay.
    Excellent quality very low noise
    I’m quite impressed with this 500w pure sine wave inverter and the design of it. This inverter operates the starlink dish no problem and is very quiet. I am fully satisfied I recommend.
    From: Stults | Date: 29/06/2022
    Was this review helpful? Yes No (0/0)
    Take this pure sine wave inverter in my next trip
    This 500 watt pure sine wave inverter is perfect for camping trips. The inverter is light and portable. I plan to take this pure sine wave inverter in my next trip.
    From: Diggy | Date: 23/06/2022
    Was this review helpful? Yes No (0/0)
    Great product
    No problems yet. It's a great product. I will take the 500 watt pure sine wave inverter up to my ranch property in April and I will use it to power my travel trailer off my solar power system. I would definitely recommend this one.
    From: Alston | Date: 17/03/2022
    Was this review helpful? Yes No (0/0)
    Shipping method of 500W Power Inverter
    I'd like to buy three of 500 watt 12V to 120V power inverters. What would be the method of shipping is it through international courier like FedEx/ DHL etc? And will the delivery be door to door?
    From: Roland | Date: 23/07/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Hi, Roland. The shipping will be via international courier (FedEx/DHL/UPS), and the delivery will be door to door.
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