1. Introduction
Thank you for choosing the LVYUAN Pure Sine Wave Power Inverter. This device is designed to convert DC (Direct Current) power from a battery into AC (Alternating Current) power, suitable for operating various electronic devices and appliances. Our inverters are available in 4000W, 5000W, and 6000W peak power variants, offering reliable and clean power for your car, camping, outdoor work, and other off-grid needs. This manual provides essential information for the safe and efficient operation of your inverter.

2. Safety Information
Please read and understand all safety instructions before installing or operating the inverter. Failure to follow these instructions may result in electrical shock, fire, serious injury, or death.
- Keep the inverter away from water, moisture, and flammable materials.
- Ensure proper ventilation around the inverter to prevent overheating.
- Do not open the inverter casing. There are no user-serviceable parts inside.
- Connect the inverter only to a DC power source with the correct voltage (12V or 24V).
- Always connect the inverter to the battery before connecting any AC appliances.
- Ensure the total power consumption of your appliances does not exceed the inverter's continuous power rating.
- Use appropriate gauge cables for battery connections to prevent voltage drop and overheating.
- Keep children away from the inverter.
3. Package Contents
Upon unpacking, please verify that all items are present and undamaged:
- LVYUAN Pure Sine Wave Power Inverter (Your selected power model)
- Battery Connection Cables (Red for Positive, Black for Negative)
- Remote Control (Battery 23A 12V not included)
- User Manual (This document)

4. Product Overview
The LVYUAN Pure Sine Wave Power Inverter features a robust design with essential ports and indicators for safe and efficient operation.
4.1 Component Identification

- Positive Pole (+): Red terminal for connecting the positive battery cable.
- Negative Pole (-): Black terminal for connecting the negative battery cable.
- Cooling FAN: Automatically activates when the internal temperature exceeds 45°C to prevent overheating.
- AC Sockets: Two universal AC output sockets for connecting your appliances.
- ON/OFF Switch: Main power switch for the inverter.
- LED Indicator: Shows the operational status of the inverter.
- Battery Voltage Display: Digital display showing the current DC input voltage from the battery.
- Voltage Output Display: Digital display showing the AC output voltage.
- USB Output: For charging USB-powered devices.
4.2 Dimensions
The physical dimensions vary slightly depending on the power model:
- 4000W Model: Approximately 390mm (L) x 150mm (W) x 85mm (H)
- 5000W Model: Approximately 350mm (L) x 180mm (W) x 140mm (H)
- 6000W Model: Approximately 340mm (L) x 180mm (W) x 140mm (H)


5. Specifications
| Feature | Specification |
|---|---|
| Output Waveform | Pure Sine Wave |
| Continuous Power | 2000W (for 4000W peak), 2500W (for 5000W peak), 3000W (for 6000W peak) |
| Peak Output Power | 4000W / 5000W / 6000W |
| Frequency | 60Hz ±2Hz |
| No Load Current Draw | <0.8 Amps |
| USB Output | Yes |
| DC Input Voltage Range | 10.5V-15.5V (for 12V systems) / 18V-30V (for 24V systems) |
| AC Output Voltage Range | 110V-130V / 220V-240V (model dependent) |
| Low Voltage Alarm | 10DC ±0.5V (12V system) / 19DC ±0.5V (24V system) |
| Low Voltage Shut Down | 9.5DC ±0.5V (12V system) / 18DC ±0.5V (24V system) |
| Over Voltage Shut Down | 15.5V (12V system) / 30.5V (24V system) |
| Over Thermal Protection | Automatic shut-off when temperature exceeds 45°C |
| Protection Features | Overload, Short Circuit, Overtemperature, Reverse Polarity, Under/Over Voltage |
| Cooling | Automatic Cooling Fans |
| Certification | CE |
| Net Weight | 2.6KG (4000W) / 4.6KG (5000W) / 5.2KG (6000W) |
6. Setup Instructions
Follow these steps to safely set up your LVYUAN Pure Sine Wave Power Inverter:
- Choose a Location: Place the inverter in a dry, well-ventilated area, away from direct sunlight, heat sources, and flammable materials. Ensure there is enough space around the inverter for proper airflow to the cooling fans.
- Prepare the Battery: Ensure your battery is fully charged and capable of providing the necessary current. Verify the battery voltage matches your inverter's input voltage (12V or 24V).
- Connect Battery Cables:
- Connect the RED battery cable to the inverter's RED Positive (+) terminal.
- Connect the BLACK battery cable to the inverter's BLACK Negative (-) terminal.
- Connect the other end of the RED cable to the battery's Positive (+) terminal.
- Connect the other end of the BLACK cable to the battery's Negative (-) terminal.
Important: Ensure connections are tight and secure. Loose connections can cause excessive heat and damage to the inverter or battery. Always connect the inverter to the battery first, then turn on the inverter.
- Initial Power On: Once the battery cables are securely connected, switch the inverter's ON/OFF switch to the 'ON' position. The LED indicator should light up, and the digital displays will show the battery voltage and AC output voltage.
- Connect Appliances: With the inverter powered on, you can now plug your AC appliances into the inverter's AC sockets.
7. Operating Instructions
Operating your LVYUAN inverter is straightforward:
- Turning On/Off: Use the main ON/OFF switch on the inverter's front panel. For remote operation, use the provided remote control. Press button 'A' to turn on and button 'B' to turn off.
- Monitoring Displays: The dual LCD displays provide real-time information:
- Battery Voltage: Shows the DC input voltage from your battery. Monitor this to ensure your battery does not discharge too low.
- AC Output Voltage: Displays the stable AC voltage being supplied to your appliances.
- Some models may also display Current, Temperature, and Frequency (refer to Figure 6).

Figure 6: Inverter with Dual Digital Displays - USB Charging: Use the integrated USB port to charge compatible devices.
- Load Management: Always ensure the total continuous power draw of your connected appliances does not exceed the inverter's continuous power rating. Overloading will trigger protection mechanisms.
8. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter:
- Cleaning: Periodically clean the exterior of the inverter with a dry, soft cloth. Ensure the cooling fan vents are free from dust and debris. Do not use liquid cleaners.
- Connection Check: Regularly inspect battery cable connections for tightness and corrosion. Clean any corrosion with a wire brush and baking soda solution.
- Ventilation: Always ensure the inverter has adequate ventilation. Do not block the cooling fan or air vents.
- Storage: If storing the inverter for an extended period, disconnect it from the battery and store it in a cool, dry place.
9. Troubleshooting
If you encounter issues with your inverter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter does not turn on | Loose battery connections, low battery voltage, faulty fuse, inverter switch off | Check and tighten battery cables. Charge battery. Check inverter fuse (if accessible and user-replaceable). Turn on inverter switch. |
| No AC output, alarm sounds | Overload, low battery voltage, over-voltage, over-temperature, short circuit | Reduce load. Charge battery. Check battery voltage. Allow inverter to cool down. Disconnect faulty appliance. |
| AC output voltage is incorrect | Incorrect input voltage, faulty inverter | Verify battery voltage is within specified range. Contact support if issue persists. |
| Cooling fan constantly running or not running | High internal temperature, fan malfunction | Ensure adequate ventilation. Clean fan vents. If fan does not run when hot, contact support. |
If the problem persists after attempting these solutions, please contact customer support.
10. User Tips
While no specific user tips were available from provided data, here are some general recommendations for optimal use:
- For sensitive electronics, always use a pure sine wave inverter like this one to prevent damage.
- Consider the surge power requirements of your appliances. Many motors (refrigerators, pumps) require a higher startup current than their continuous rating.
- When using the inverter in a vehicle, ensure the engine is running to prevent draining the vehicle's battery.
- Always disconnect the inverter from the battery when not in use for extended periods to prevent parasitic drain.
11. Warranty and Support
The LVYUAN Pure Sine Wave Power Inverter comes with a 1-year warranty period from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
For technical support, warranty claims, or any questions not covered in this manual, please contact your seller or refer to the official LVYUAN website for contact information.





