One-stop purchase services

Professional supplier of power supply products

Congsin 300W Modified Sine Wave Inverter — Reliable DC→AC Power

300W Modified Sine Wave Inverter — Reliable DC→AC Power by Congsin

Overview

The 300w modified sine wave inverter from Congsin converts 12V/24V DC to stable AC power, providing a compact, budget-friendly solution for powering small appliances and electronics. Designed for portable and vehicle-based scenarios, this inverter balances performance and cost for users who need dependable power without the High Quality price of pure sine units.

Key Features

Our 300w modified sine wave inverter offers continuous 300W output with surge capability for short-term startup loads. Built with multiple protections—overload, over-temperature, short-circuit and low-voltage alarm/shutdown—it ensures safe operation in mobile and off-grid environments. Intelligent cooling, LED indicators and universal AC outlets make it user-friendly and reliable for everyday use.

Applications

Ideal for vehicles, RVs, trucks, patrol vehicles, outdoor offices and small off-grid homes, the 300w modified sine wave inverter supports lighting, power tools, chargers, small refrigerators and audio/visual equipment. It’s also a practical component in solar hybrid setups and portable power stations where cost-effectiveness and robust performance matter.

Manufacturing Excellence

Congsin—founded in 1998—brings over 27 years of focused inverter expertise. We operate fully automated production lines and advanced testing systems to guarantee product reliability. Our manufacturing quality is ISO9001 certified, and many models carry CE, EMC, LVD, ETL, FCC, RoHS and E-MARK approvals. Independent patents and continuous R&D reinforce our commitment to innovation.

Why Choose Congsin

Choosing Congsin means partnering with a seasoned OEM/ODM supplier that serves global markets across Europe, the Americas, the Middle East, Africa and Southeast Asia. We offer private labeling, bespoke customization and responsive technical support to match application-specific needs. For users seeking an affordable, well-engineered 300w modified sine wave inverter, Congsin delivers dependable performance and proven safety compliance.

Specifications & Support

Key specs include 300W continuous output, peak surge capacity, input 12V/24V options, universal AC output and built-in protection systems. Detailed datasheets, OEM options and distribution support are available—contact Congsin for tailored solutions and volume supply.

300w modified sine wave inverter​ Display

FAQ:
Does it only support DC12V input voltage?

The regular model has DC12V input, and other input voltages such as DC24V can be customized. Please consult customer service for details.

Can it be connected to a battery long-term?

Yes, ensure good ventilation to avoid overheating.

Can the peak 720W supply power continuously?

The peak power is the instantaneous maximum power, and the continuous power supply is 360W. Ensure that the device power does not exceed the rated value when using.

Can this inverter power a laptop?

 If the laptop power is within 150W and the input is AC220V, it can supply power normally.

Related Products
300W Modified Sine Wave Inverter (3)_结果 - Congsin

Congsin 300W Modified Sine Wave Inverter LCD Display 4 USB Ports Car RV Boat Portable Backup Power

Read More
Congsin 300W Modified Sine Wave Inverter LCD Display 4 USB Ports Car RV Boat Portable Backup Power
power inverter car - Congsin

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)
Customize Inverter - Congsin

Congsin Red Shell 300W Mini Car Power Inverter 12V to 110V DC to AC Dual USB Battery Clamps Portable

Congsin Red Shell 300W Mini Car Power Inverter 12V to 110V DC to AC Dual USB Battery Clamps Portable
Modified Sine Wave Inverter - Congsin

500W Single Phase Sine Wave Inverter DC12V to AC220V Off-grid Sine Wave Inverter

500W Single Phase Sine Wave Inverter DC12V to AC220V Off-grid Sine Wave Inverter
3000W Inverter - Congsin

Manufacturer Wholesales 3000W Single Phase Power Inverter Home Camping Appliance

Manufacturer Wholesales 3000W Single Phase Power Inverter Home Camping Appliance
Inverter with LCD Display - Congsin

1500W Off-grid Sine Wave Inverter Pure Sine Wave Inverter with LCD Display and OEM Available

1500W Off-grid Sine Wave Inverter Pure Sine Wave Inverter with LCD Display and OEM Available
c01df7f91f6b9e6ef866d30f948f780b - Congsin

Factory Direct Grid-Tie Solar Inverter, Off Grid & On Grid Dual Mode Hybrid Inverter with MPPT Controller

Factory Direct Grid-Tie Solar Inverter, Off Grid & On Grid Dual Mode Hybrid Inverter with MPPT Controller
Top Selling Products
car battery to power inverter - Congsin

3000W Full-Power Pure Sine Wave Inverter, DC 12V to AC 220V Power Converter, Suitable for High-Power Precision Devices

3000W Full-Power Pure Sine Wave Inverter, DC 12V to AC 220V Power Converter, Suitable for High-Power Precision Devices
Customize Inverter - Congsin

Congsin Red Shell 300W Mini Car Power Inverter 12V to 110V DC to AC Dual USB Battery Clamps Portable

Congsin Red Shell 300W Mini Car Power Inverter 12V to 110V DC to AC Dual USB Battery Clamps Portable
Modified Sine Wave Inverter - Congsin

500W Single Phase Sine Wave Inverter DC12V to AC220V Off-grid Sine Wave Inverter

500W Single Phase Sine Wave Inverter DC12V to AC220V Off-grid Sine Wave Inverter
3000W Inverter - Congsin

Manufacturer Wholesales 3000W Single Phase Power Inverter Home Camping Appliance

Manufacturer Wholesales 3000W Single Phase Power Inverter Home Camping Appliance
Inverter with LCD Display - Congsin

1500W Off-grid Sine Wave Inverter Pure Sine Wave Inverter with LCD Display and OEM Available

1500W Off-grid Sine Wave Inverter Pure Sine Wave Inverter with LCD Display and OEM Available
c01df7f91f6b9e6ef866d30f948f780b - Congsin

Factory Direct Grid-Tie Solar Inverter, Off Grid & On Grid Dual Mode Hybrid Inverter with MPPT Controller

Factory Direct Grid-Tie Solar Inverter, Off Grid & On Grid Dual Mode Hybrid Inverter with MPPT Controller
c01df7f91f6b9e6ef866d30f948f780b - Congsin

Factory Direct Sales 6000W Hybrid Solar Power Inverter with Controller and LCD Display

Factory Direct Sales 6000W Hybrid Solar Power Inverter with Controller and LCD Display
4000W Hybrid Inverter - Congsin

Congsin 4000W and 6000W Hybrid Inverter with Controller with LCD Display and CE Certification Solar

Congsin 4000W and 6000W Hybrid Inverter with Controller with LCD Display and CE Certification Solar
1000w (2) - Congsin

Congsin Manufacturer Wholesales Big Capability Modified Sine Wave Inverter with Red case and Double fan

Congsin Manufacturer Wholesales Big Capability Modified Sine Wave Inverter with Red case and Double fan
Car Inverter - Congsin

Factory Direct Sales Portable 150W Modified Sine Wave Inverter DC12V to AC220V Off-grid Sine Wave Inverter with Two USB and Universal Socket

Factory Direct Sales Portable 150W Modified Sine Wave Inverter DC12V to AC220V Off-grid Sine Wave Inverter with Two USB and Universal Socket
500W UPS MOLDIFIED SINE WAVE INVERTER - Congsin

Congsin 500W DC to AC Modified Sine Wave Inverter 12V 220V Off Grid Power Inverter

Congsin 500W DC to AC Modified Sine Wave Inverter 12V 220V Off Grid Power Inverter
1000W Pure sine wave inverter  (5) - Congsin

Congsin 1000W pure sine wave inverter 12V DC to AC Power Inverter with remote control for Car RV

Congsin 1000W pure sine wave inverter 12V DC to AC Power Inverter with remote control for Car RV
Related Blog
Related Search
1000W modified sine wave inverter
1000W modified sine wave inverter
AC 220V Power Converter
AC 220V Power Converter
500W off-grid inverter US sockets LCD
500W off-grid inverter US sockets LCD
modified sine wave inverter for solar off grid systems
modified sine wave inverter for solar off grid systems
dc to ac
dc to ac
best modified sine wave inverter
best modified sine wave inverter
1000W Modified Sine Wave Inverters
1000W Modified Sine Wave Inverters
Best modified sine wave inverter
Best modified sine wave inverter
best 500W modified sine wave inverter for camping
best 500W modified sine wave inverter for camping
Modified Sine Wave Sine Inverter with USB Ports
Modified Sine Wave Sine Inverter with USB Ports

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.

Name must not exceed 100 characters.
Invalid email format or length exceeds 100 characters. Please re-enter.
Please enter a valid phone number!
Company Name must not exceed 150 characters.
Content must 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.

×
Name must not exceed 100 characters.
Invalid email format or length exceeds 100 characters. Please re-enter.
Please enter a valid phone number!
Company Name must not exceed 150 characters.
Content must 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.

×
Name must not exceed 100 characters.
Invalid email format or length exceeds 100 characters. Please re-enter.
Please enter a valid phone number!
Company Name must not exceed 150 characters.
Content must 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.

×
Name must not exceed 100 characters.
Invalid email format or length exceeds 100 characters. Please re-enter.
Please enter a valid phone number!
Company Name must not exceed 150 characters.
Content must 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.

×
Name must not exceed 100 characters.
Invalid email format or length exceeds 100 characters. Please re-enter.
Please enter a valid phone number!
Company Name must not exceed 150 characters.
Content must not exceed 3000 characters.