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Congsin Modified Sine Wave Inverter 12V — Reliable DC to AC Power

Congsin 12V modified sine wave inverter delivers reliable, efficient DC→AC power for vehicles, RVs, solar systems and off-grid use. ISO9001 certified, globally approved, and backed by 27+ years of inverter expertise. OEM/ODM supported.
Product Description

Overview

The Congsin modified sine wave inverter 12v is a practical, cost-effective solution to convert 12V DC battery power into stable AC power for small appliances, tools and electronics. Designed by Guangzhou Congsin Electronic Technology Co., Ltd., a company with over 27 years of inverter experience, this 12V modified sine inverter balances affordability with reliable performance for everyday mobile and off-grid applications.

Key Features

Reliable Performance

Our 12V modified sine wave inverter delivers clean, consistent AC output suitable for lights, fans, chargers, power tools and many household devices. Built with quality components and full automated production, it provides dependable operation in vehicles, RVs, trucks and off-grid sites.

Safety and Compliance

Congsin products follow strict quality controls under an ISO9001 system and carry common international approvals. Safety features include overload protection, short-circuit protection, low-voltage alarm and automatic shutdown—giving you peace of mind when using the inverter on the road or in the field.

Compact and Easy to Use

This 12V modified sine inverter features a compact design, simple hook-up, and clear indicator lights. It is ideal for users who need a straightforward DC→AC inverter without the extra cost of a pure sine wave model.

Applications

Typical uses for the modified sine wave inverter 12v include powering phone and laptop chargers, LED lighting, small kitchen appliances, fans, diagnostic tools and outdoor equipment. It is a popular choice for vehicle owners, RV travelers, solar hobbyists and construction teams working off-grid.

Why Choose Congsin

Guangzhou Congsin Electronic Technology Co., Ltd. has been designing and manufacturing power inverters since 1998. With automated production lines, patented designs and global OEM experience, Congsin provides reliable products, customization options, and responsive support. For product inquiries or OEM/ODM services, visit www.csinverter.com or contact info@csinverter.com.

Specifications & Support

Model options, continuous and peak power ratings, and connector choices are available to match your needs. Contact our sales team for datasheets, installation guidance and certification details. Choose Congsin for a trustworthy 12V modified sine wave inverter backed by decades of expertise.

Product Images

  • 200W Modified Sine Wave Car Power Inverter
  • car lighter inverter

Qualification Certificate

  • CE Certificate Number - TST20220680033-1S0

    CE Certificate Number - TST20220680033-1S0

  • FC Certifcate Number - TST20220503108-45C

    FC Certifcate Number - TST20220503108-45C

  • SGS Certificate

    SGS Certificate

Q&A

Can it drive a 3P air conditioner and an electric oven at the same time?

Total power needs to be calculated: the rated power of a 3P air conditioner is about 2200W-2500W, and the electric oven is about 1500W-2000W. The total power is 3700W-4500W, which exceeds the 3000W continuous power, so simultaneous use is not recommended; if used alone, the 6000W peak can meet the startup needs of both, and the battery capacity must be ≥200Ah (12V) when used alone.

Does it support inductive loads?

Modified sine wave inverters are suitable for resistive loads; for inductive loads, pure sine wave models are recommended.

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

Pure sine wave inverter has an output waveform close to mains power with low distortion rate (<3%), which can be safely adapted to precision devices such as computers, medical instruments, and inverter home appliances; modified sine wave inverter has a notched waveform, which easily causes device heating, malfunction or damage, and is only suitable for simple devices such as bulbs and fans.

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.

Get In Touch With Us
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Guangzhou Congsin Electronic Technology Co., Ltd.
5 Floor, B1 Building Longshan Industry Park, Yinglong Road Longdong Tianhe District, Guangzhou, Guangdong, China.
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