Congsin 300W Modified Sine Wave Inverter — Reliable Portable Power
Overview
The Congsin 300W modified sine wave inverter turns 12V DC into usable AC power for small appliances and devices. Designed by Guangzhou Congsin Electronic Technology Co., Ltd., a trusted inverter manufacturer with over 27 years of experience, this inverter combines simplicity, safety and proven reliability for vehicle, RV, boat and off-grid use.
Why choose the Congsin 300W Modified Sine Wave Inverter
Compact and portable
Lightweight and easy to mount, the 300W inverter fits into cars, trucks and mobile setups. It provides dependable power without bulky installation.
Practical performance
Continuous output of 300W with higher surge capacity to start small motors and tools. Available in common output voltages (110/120V or 220/230V) to match regional needs.
Built-in protections for peace of mind
Multiple safety features protect your devices and vehicle battery: overload protection, short-circuit protection, over-temperature shutdown, low-voltage alarm and auto shutdown, and reverse-polarity protection.
Key features
- Type: Modified sine wave output — cost-effective and compatible with many appliances
- Rated power: 300W continuous, higher peak surge for startup loads
- Input: 12V DC (vehicle battery or solar battery bank)
- Output options: 110/120V or 220/230V AC models
- LED indicators and easy on/off switch for simple operation
- Multiple safety protections and cooling ventilation
Trusted quality and global support
Guangzhou Congsin has been designing and manufacturing power inverters since 1998. We use automated production lines and strict testing procedures. Our quality system is ISO9001 certified and many product lines hold international approvals such as CE, EMC, LVD, ETL, FCC, RoHS and E-MARK. OEM/ODM and private labeling services are available.
Typical applications
- Powering laptops, lights, small TVs and chargers in cars and RVs
- Backup power for small off-grid needs or field work
- Camping, patrol, construction sites and mobile offices
Easy to buy and support
The Congsin 300W modified sine wave inverter is ideal for users who need reliable, affordable AC power from a DC source. For specifications, certification requests or customization, contact our sales team. Congsin delivers dependable energy solutions that help you stay powered and independent.
Detailed display
Certificate display
ROSH -Certificate Number - TST20220503108-3RC
CE Certifcate Nomber - TS120220503108.2FC
FC Certifcate Number - TST20220503108-45C
Question you may concern
Can 4 USB ports fast charge at the same time?
Yes, 4 USB ports can fast charge mobile phones, tablets and other devices at the same time, meeting the needs of simultaneous charging of multiple devices.
Can this inverter drive a 3P air conditioner and a refrigerator at the same time?
Yes. The rated power of a 3P air conditioner is about 2200W-2500W, and an ordinary double-door refrigerator is about 150W-300W, with a total power of about 2350W-2800W, which does not exceed the 3000W continuous power; and the peak 6000W can cope with the instantaneous startup impact of the air conditioner. When using, ensure the battery capacity is ≥200Ah (12V) to ensure battery life.
Do you support OEM branding?
Yes, we offer logo, packaging, and label customization.
What devices can be powered by the cigarette lighter port?
The cigarette lighter port can be used for car air pumps, car refrigerators, car vacuum cleaners and other conventional cigarette lighter powered devices, as long as the power does not exceed 300W.
If you have any questions or concern, please contact us.
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CONGSIN is a trusted OEM factory for power inverters, solar charge controllers, and DC converters. Reliable solutions for global B2B buyers.
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