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Congsin — Trusted Modified Sine Wave Inverter Manufacturers

Congsin — Reliable Modified Sine Wave Inverter Manufacturers

Congsin (Guangzhou Congsin Electronic Technology Co., Ltd.), established in 1998, is a leading manufacturer of modified sine wave inverters and comprehensive DC→AC power solutions. With over 27 years of focused experience, Congsin designs, R&Ds and manufactures portable power stations, solar charge controllers and a broad range of inverters tailored for vehicles, RVs, trucks, off-grid homes and field applications. As experienced modified sine wave inverter manufacturers, we blend proven reliability with cost-effective performance.

Product Range & Typical Applications

Our catalog includes 100+ models, including modified sine wave inverters optimized for vehicle electronics, camping and basic off-grid loads. These models are ideal for powering lights, small appliances, tools and electronic devices where a budget-friendly, robust AC source is required. Congsin’s product lineup supports solar systems, portable power, patrol and field construction work.

Quality, Safety and Certifications

Congsin operates automated production lines and advanced testing equipment to ensure product reliability and intelligent functionality. Our quality system is ISO9001 certified and many products meet CE, EMC, LVD, ETL, FCC, RoHS and E‑MARK standards. Several independently developed patents validate our engineering capability and commitment to safe, compliant inverter manufacturing.

Customization, OEM/ODM and Private Label

We support flexible OEM/ODM services and private labeling to meet partner specifications. As expert modified sine wave inverter manufacturers, Congsin offers bespoke customization — from firmware and connector options to enclosure design and packaging — enabling seamless integration into OEM supply chains and branded product offerings.

Global Reach and After-Sales Support

Congsin products serve markets across Europe, the Americas, the Middle East, Africa and Southeast Asia. Many models are supplied to domestic and international OEM channels with full technical support, warranty service and spare parts availability. Our mission is to deliver reliable, efficient and affordable energy solutions that enable energy independence.

Why Choose Congsin?

Choose Congsin for decades of manufacturing expertise, certified quality, extensive model variety and responsive customization. Whether you need a cost-effective modified sine wave inverter for basic AC loads or a tailored solution for an OEM program, Congsin delivers dependable performance and global support.

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FAQ:
How does the UPS function of this inverter work?

When the external power supply is normal, the inverter powers the device while charging the battery; when the external power supply is interrupted, it automatically switches to battery power to ensure uninterrupted operation of the device.

What devices can be powered by this inverter?

Suitable for TVs, fans, computers, and small tools.

 

Is customization available?

OEM/ODM support for logo, color, and packaging design.

Does it include protection features?

Yes, it has sixfold safety protection for reliable performance.

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.

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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.

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customized my Products

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

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