One-stop purchase services

Professional supplier of power supply products

Congsin Modified Sine Wave Inverters for Solar Off-Grid Systems

Congsin Modified Sine Wave Inverters for Solar Off-Grid Systems

Reliable Performance for Off-Grid Power

Congsin modified sine wave inverter for solar off grid systems offers robust DC→AC conversion optimized for battery-based solar setups, RVs, trucks and portable stations. Built with over 27 years of focused inverter expertise, these models balance affordability and dependable output for appliances, lighting and tools where pure sine wave is not required.

Key Features and Applications

Our inverters provide stable voltage regulation, low standby consumption, overload and short-circuit protection, and multiple nominal power ratings suitable for small to medium off-grid installations. Ideal applications include off-grid homes, solar cottages, patrol and field construction, outdoor offices and vehicle-mounted power systems.

Manufacturing Quality and Certifications

Congsin operates fully automated production lines and advanced testing equipment to ensure consistent reliability and intelligent functionality. Our quality system is ISO9001 certified and many models carry international approvals such as CE, EMC, LVD, ETL, FCC, RoHS and E-MARK—ensuring compliance with global safety and environmental standards.

Design, Innovation and Customization

With 100+ inverter models and several independently developed patents, Congsin supports OEM/ODM and private labeling. We offer bespoke customization to meet partner specifications, from connector types and display options to tailored protections and firmware settings for specific solar off-grid systems.

Why Choose Congsin?

Congsin’s decades-long focus on power solutions means you receive proven products, scalable supply chains and professional support. Our modified sine wave inverter for solar off grid systems is an economical choice for projects prioritizing cost-effectiveness, simplicity and broad appliance compatibility—backed by global distribution and after-sales service.

Buy and Support

Explore model specifications, request samples or discuss OEM/ODM needs with our technical team. Congsin delivers energy independence through reliable, efficient and affordable inverter solutions crafted for real-world off-grid demands.

modified sine wave inverter for solar off grid systems Display

FAQ:
Can it be connected to a battery long-term?

Yes, ensure good ventilation to avoid overheating.

What is the difference between modified sine wave and pure sine wave?

Modified sine wave is suitable for most ordinary home appliances and electronic devices; pure sine wave is suitable for devices with extremely high power requirements (such as precision instruments). This modified sine wave is more cost-effective and meets the needs of most daily scenarios.

How does reverse protection work?

When the positive and negative poles of the battery are reversed, the inverter will automatically cut off the circuit to avoid device damage and ensure power usage safety.

What is the reason for the inverter automatically shutting down during operation?

It is likely that the protection mechanism is triggered: 1. Load overload (total power of connected devices exceeds 1000W); 2. Abnormal input voltage (battery voltage <10.8V or >14.5V); 3. Device overtemperature (excessively high ambient temperature or cooling fan failure). It is recommended to disconnect some loads, check the battery voltage or clean the heat dissipation port before trying again.

Related Products

150W Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter

Read More
150W Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter

1000W 1500W 2000W UPS POWER INVERTER WITH CHARGER 10A 15A 20A DC TO AC 12v24v 110v 220V

1000W 1500W 2000W UPS POWER INVERTER WITH CHARGER 10A 15A 20A DC TO AC 12v24v 110v 220V

1500W Modified Sine Wave Inverter, DC 12V to AC 220V Power Inverter with LED Display, 3 USB Ports, 1 Type-C, 1 DC 12V Output & Two Universal Sockets

1500W Modified Sine Wave Inverter, DC 12V to AC 220V Power Inverter with LED Display, 3 USB Ports, 1 Type-C, 1 DC 12V Output & Two Universal Sockets

Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter 150W

Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter 150W

low frequency solar inverter 12v/24v/48v pure sine wave power inverter2000w 3000w 4000w 5000w 6000w 8000w 10000w 12000w

low frequency solar inverter 12v/24v/48v pure sine wave power inverter2000w 3000w 4000w 5000w 6000w 8000w 10000w 12000w

1000W Modified Sine Wave Inverter with UPS Charger DC12V to AC220V 600W Rated Power Dual Universal Socket Inverter

1000W Modified Sine Wave Inverter with UPS Charger DC12V to AC220V 600W Rated Power Dual Universal Socket Inverter

300W Modified Sine Wave Inverter DC12V to AC220V 4 USB Ports Dual Universal Sockets Inverter with LCD Display (with Cigarette Lighter, Battery Clip)

300W Modified Sine Wave Inverter DC12V to AC220V 4 USB Ports Dual Universal Sockets Inverter with LCD Display (with Cigarette Lighter, Battery Clip)
Top Selling Products

1000W 1500W 2000W UPS POWER INVERTER WITH CHARGER 10A 15A 20A DC TO AC 12v24v 110v 220V

1000W 1500W 2000W UPS POWER INVERTER WITH CHARGER 10A 15A 20A DC TO AC 12v24v 110v 220V

1500W Modified Sine Wave Inverter, DC 12V to AC 220V Power Inverter with LED Display, 3 USB Ports, 1 Type-C, 1 DC 12V Output & Two Universal Sockets

1500W Modified Sine Wave Inverter, DC 12V to AC 220V Power Inverter with LED Display, 3 USB Ports, 1 Type-C, 1 DC 12V Output & Two Universal Sockets

Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter 150W

Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter 150W

low frequency solar inverter 12v/24v/48v pure sine wave power inverter2000w 3000w 4000w 5000w 6000w 8000w 10000w 12000w

low frequency solar inverter 12v/24v/48v pure sine wave power inverter2000w 3000w 4000w 5000w 6000w 8000w 10000w 12000w

1000W Modified Sine Wave Inverter with UPS Charger DC12V to AC220V 600W Rated Power Dual Universal Socket Inverter

1000W Modified Sine Wave Inverter with UPS Charger DC12V to AC220V 600W Rated Power Dual Universal Socket Inverter

300W Modified Sine Wave Inverter DC12V to AC220V 4 USB Ports Dual Universal Sockets Inverter with LCD Display (with Cigarette Lighter, Battery Clip)

300W Modified Sine Wave Inverter DC12V to AC220V 4 USB Ports Dual Universal Sockets Inverter with LCD Display (with Cigarette Lighter, Battery Clip)

500W Modified Sine Wave Inverter (Rated 360W) DC12V to AC220V 4 USB Ports (6.8A) Dual LED Display Inverter with Reverse Protection

500W Modified Sine Wave Inverter (Rated 360W) DC12V to AC220V 4 USB Ports (6.8A) Dual LED Display Inverter with Reverse Protection

500W Modified Sine Wave Inverter (Rated 360W Peak 720W) DC12V to AC220V Inverter with LED Display Universal Socket

500W Modified Sine Wave Inverter (Rated 360W Peak 720W) DC12V to AC220V Inverter with LED Display Universal Socket

Patent Model 2000W Modified Sine Wave Inverter DC12V to AC220V Multi-interface Independent Control Power Converter

Patent Model 2000W Modified Sine Wave Inverter DC12V to AC220V Multi-interface Independent Control Power Converter

500W Modified Sine Wave Inverter with UPS Charger DC12V to AC220V 360W UPS Power Converter

500W Modified Sine Wave Inverter with UPS Charger DC12V to AC220V 360W UPS Power Converter

150W Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter

150W Dual Input Modified Sine Wave Car Inverter DC12V/24V to AC220V Multi-interface Power Converter

200W Modified Sine Wave Car Power Inverter, Dual Input DC12V/24V to AC220V with Type-C & Dual USB Ports

200W Modified Sine Wave Car Power Inverter, Dual Input DC12V/24V to AC220V with Type-C & Dual USB Ports
Related Blog

How to Choose the Right Solar Panel System for Your Home?

This 2025 guide helps homeowners select the best solar panel system by evaluating N-Type TOPCon efficiency, smart energy management (SEMS), and Vehicle-to-Home (V2H) readiness. Learn to calculate real energy demand, compare top inverter brands, and maximize ROI with the 30% Federal Tax Credit.

How to Choose the Right Solar Panel System for Your Home?

Best Power Inverter for Car: 2026 Buyer's Guide for Fast Charging & Reliability

A comprehensive 2026 buyer's guide for car power inverters. Discover why experts recommend Pure Sine Wave and GaN technology for safely powering laptops, Starlinks, and appliances on the road.

Best Power Inverter for Car: 2026 Buyer's Guide for Fast Charging & Reliability

Best Solar Power Inverter for Home in 2026: Your Ultimate Guide to Energy Independence

Your ultimate guide to the best solar power inverter for home in 2026. Compare home solar inverter types, including hybrid and microinverters, for optimal efficiency.

Best Solar Power Inverter for Home in 2026: Your Ultimate Guide to Energy Independence

What Certifications and Standards Are Required for Exporting Inverters?

What Certifications and Standards Are Required for Exporting Inverters?
Related Search
best 500W modified sine wave inverter for camping
best 500W modified sine wave inverter for camping
500W modified sine wave inverter for car and RV
500W modified sine wave inverter for car and RV
solar inverter power inverter low frequency ups mppt
solar inverter power inverter low frequency ups mppt
pure sine wave inverters for sale​
pure sine wave inverters for sale​
pure sine wave power inverters for sale​
pure sine wave power inverters for sale​
UPS
UPS
300w modified sine wave inverter​
300w modified sine wave inverter​
modified sine wave car inverter dc to ac 150w 200w power inverter
modified sine wave car inverter dc to ac 150w 200w power inverter
1000w modified sine wave inverter​
1000w modified sine wave inverter​
500w modified sine wave inverter​
500w modified sine wave inverter​

Contact Our Power Solution Experts

Provide your project details and requirements, and Congsin will deliver customized inverter, portable power, or solar controller solutions with full technical support.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1290 not exceed 150 characters
Please enter your content not exceed 3000 characters
Contact customer service

Get a free quote

Hi,

If you are interested in our products/custom services or have any questions, please let us know so that we can better assist you.

×
Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1290 not exceed 150 characters
Please enter your content not exceed 3000 characters

How can we help?

Hi,

If you are interested in our products/customized solutions or have any doubts, please be sure to let us know so that we can help you better.

×
Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1290 not exceed 150 characters
Please enter your content not exceed 3000 characters

Request my quote

Hi,

If you are interested in our products/custom services or have any questions, please let us know so that we can better assist you.

×
Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1290 not exceed 150 characters
Please enter your content not exceed 3000 characters

customized my Products

Hi,

If you are interested in our products/custom services or have any questions, please let us know so that we can better assist you.

×
Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1290 not exceed 150 characters
Please enter your content not exceed 3000 characters