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3500W Pure Sine Wave Inverter – Multi-Port 12V to 220V Power Converter with Double Fans and LCD Display

Experience powerful and versatile off-grid energy with the 3500W Pure Sine Wave Inverter, designed with double fans, four USB ports (USB 3.0 included), dual AC sockets, and multifunction LCD display – perfect for RV, camping, and emergency home backup.

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3500W Pure Sine Wave Inverter – Multi-Port High-Capacity Power Hub for RV, Camping, and Emergency Use

Introduction: High Power for Modern Needs

For those seeking a robust power solution for off-grid living, outdoor adventures, or emergency backup, the 3500W Pure Sine Wave Inverter by Congsin delivers unmatched stability, versatility, and reliability. This inverter bridges the gap between compact portability and high-power output, offering pure sine wave AC energy that’s safe for sensitive electronics and appliances.

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With 3500W continuous power and 7000W surge capacity, it easily powers demanding devices like fridges, microwaves, power tools, and entertainment systems. The inclusion of multi-port USB outputs, dual AC sockets, double cooling fans, and an LCD display enhances both usability and safety.


Key Features of the 3500W Pure Sine Wave Inverter

1. Multi-Port Charging and Output

  • 4 USB ports (including 1 USB 3.0 fast charge) for simultaneous charging of phones, tablets, and cameras.

  • Dual AC sockets to power multiple medium-to-high load devices at once.

2. Pure Sine Wave Output

  • Delivers clean, grid-quality AC power suitable for laptops, medical equipment, and sensitive audio gear.

  • Reduces interference, ensuring smooth operation of modern electronics.

3. Double Fans for Optimal Cooling

  • Dual high-efficiency fans keep the inverter cool during continuous heavy-duty operation, extending its lifespan.

4. Multifunction LCD Display

  • Real-time voltage, load, and system monitoring ensures safe and efficient energy use.

5. Flexible Battery Clamp Connectivity

  • Easily connects to vehicle batteries or solar systems, ideal for mobile or remote power setups.

6. Comprehensive Safety Protections

  • Built-in safeguards: overload, short circuit, high/low voltage, overheating.

  • Certified to CE, FCC, RoHS, LVD standards for worldwide compliance.


Applications: Ideal for Off-Grid and Backup Power

RV and Camper Power Solution

  • Run kitchen appliances, entertainment devices, and lighting on long road trips.

  • Double fans maintain safe temperatures during extended operation.

Outdoor Camping and Field Work

  • Power portable fridges, cooking equipment, drones, and cameras without grid access.

  • Lightweight yet powerful enough for extended camping setups.

Emergency Home Backup

  • Maintain routers, lighting, and essential electronics during blackouts.

  • Pure sine wave ensures quiet, interference-free energy for sensitive devices.

Solar Energy Integration

  • Compatible with 12V solar systems, supporting cabins, tiny homes, and off-grid setups.


Technical Specifications

  • Input Voltage: 12V DC

  • Output Voltage: 220V AC ±5%

  • Continuous Power: 3500W

  • Peak Power: 7000W

  • Waveform: Pure Sine Wave

  • Cooling: Double Fans

  • Ports: 4 USB (1 USB 3.0), Dual AC Output

  • Display: Multifunction LCD

  • Certifications: CE, FCC, RoHS, LVD


Emotional Value: Power and Peace of Mind

Picture yourself camping in the wild with reliable energy for your gadgets or facing a power outage at home yet staying fully connected. The 3500W Pure Sine Wave Inverter ensures freedom, safety, and convenience for every adventure or emergency.


Customer Testimonials

“This inverter powers my small kitchen appliances during road trips without breaking a sweat. Love the LCD display!” – Brian K., USA

“Perfect for my solar setup in the cabin. Clean power, quiet fans, and plenty of USB ports.” – Marina T., Australia


Installation Tips

  • Use short, thick cables to minimize energy loss and heat buildup.

  • Place inverter in ventilated areas for efficient cooling.

  • Monitor LCD display for battery and load indicators.

  • Ideal with deep-cycle batteries or solar panels for sustainable off-grid use.


Internal and External Links


Why Choose Congsin?

With 27+ years in inverter manufacturing, Congsin products combine advanced engineering, versatile output options, and global certifications. Trusted for OEM/ODM bulk orders, this 3500W model delivers affordable high performance for personal and professional energy needs.


Call to Action

Power your adventures and protect your home with the 3500W Pure Sine Wave Inverter. Shop Now or explore our OEM services for custom solutions.

Need a dependable inverter that handles real-life demands?
Request a quote today or contact our team for OEM/ODM options.

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