off grid inverter, pure sine wave inverter, modified sine wave inverter Manufacturer & Supplier

Power Your Adventures Anywhere

Modified Sine Wave Inverters for Reliable Power
in Vehicles & Outdoors.

Outdoor Energy Vision

Pure Sine Wave

Smart ECO Mode friendly to battery&reduce no-load loss，convenient remote control function, pure sine wave technology safeguards your sensitive electronics with stable cleaner power，ideal for RVs, remote cabin, camper trailer, off grid solar system, and outdoor emergency power needs. Empower your independent living.

Modified Sine Wave

Cost-effective, Enjoy remote wired control, reliability with heavy-duty 90% efficiency performance, full advanced protection, clear LCD monitoring – perfect for off grid home, automotive Portable Power,Camping and Car Accessories.

ABOUT US

Connect power and start the future:

Suzhou Sinemax Electronics Technology Co., Ltd.Sinemax manufacturing, sales and service in automotive and off - grid inverters. Leveraging our expertise in vehicle power supply and supported by global layout “China + Thailand Manufacturing”dual bases, we offer innovative vehicle off grid power solutions worldwide.

Our main products include 12V/24V 400W - 6000W automotive and off - grid inverters, 100W - 1000W lithium - battery inverters, covering modified and pure sine wave. All products are ETL,CE and ROHS certified, widely apply for automotive power supply, off - grid home systems, RVs, camper trailers and outdoor emergency power needs.

With strong technical strength and innovative design ability, we focus on OEM & ODM services, committed to offer tailoring high-quality and differentiated products for branded customers globally. Thanks to the China - Thailand dual manufacturing model, we help partners gain competitive edges in global markets and stabilize long term win-win cooperative relationship with customers worldwide.

PROFESSIONAL SPIRIT

Our off - grid inverters offer a comprehensive solution. With high - quality products, professional services, and advanced technology, we ensure stable power supply, meeting diverse needs for reliable off - grid power.

Service

OEM&ODM
One-stop flexible OEM&ODM service, precisely reach out to customer’s demands.

Techinacal

Senior R&D Team
Electronics &Structural Engineer with 7-8 years working experience on inverter, software engineer with over 10 years professional design experience.

Manufactory

Production Base
global layout “China + Thailand Manufacturing”dual bases，enable strong competitive ablity

Soluthion

Focus on Solutions
Sinemax delivers reliable pure sine wave power solutions for any off-grid scenario, engineered for global standards.

Pure Sine Wave Inverter Solution

SINEMAX Pure Sine Wave Series delivers grid-quality AC power (12V 1100W-3000W) with >90% efficiency, engineered for sensitive electronics. Featuring ECO mode (20% power savings), smart remote control, and multi-protection systems (overload/voltage/temperature), our inverters are RV/solar-ready with LCD monitoring and QC3.0 USB ports. CE-certified (IEC 62368-1) for global off-grid homes, medical devices, and outdoor adventures.

Key Features:
✓ Grid power grade output
✓ ECO modesave battery
✓ 2x faster charging (18W USB-C)
✓ China-Thiland OEM customization

Modified Sine Wave Inverter Solution

SINEMAX Modified Sine Wave Series (12V 1100 W-6000W) balances performance and affordability with 90% efficiency. Includes free wired remote, real-time LCD diagnostics, and industrial-grade protection. ETL(UL 458)/CE(IEC 62368-1)certified for campers, job sites, and emergency backup power.

Value Proposition:

✓ cost-effective for outdoor backup power

✓ heavy duty cable with ANL fuse kit

✓ Remote control function

Portable Inverter Showcase
A Must-Have for Outdoor Adventures

Modified Sine Wave Inverter

Lasted News

Power Inverters Explained – Key Basics & Practical Uses
While your RV batteries typically supply 12-volt DC power, the majority of appliances and devices used in an RV—such as laptops, coffee makers, microwaves, and televisions—require 120-volt AC power, just like the electricity in your home. This is where an RV power inverter steps in: its core functio Read More
Off-Grid Residential Solar Energy Systems: The Ultimate Guide To Energy Independence
For homeowners in remote areas, or those craving complete freedom from utility grids, off-grid residential solar energy systems (also called stand-alone solar systems) are more than just a renewable energy option—they’re a ticket to self-sufficiency, cost savings, and environmental responsibility. U Read More
The Ultimate Guide to Pure Sine Wave Inverters for RV Power Freedom
The Ultimate Guide to Pure Sine Wave Inverters for RV Power FreedomUnlock the full potential of your RV adventures with clean, reliable powerFor modern RV enthusiasts, achieving true energy independence is the ultimate goal. Whether you're boondocking in remote locations or simply want the comforts Read More
Power Your Adventures with Precision: The Ultimate Guide To RV Inverters
In the world of RV living and off-grid exploration, reliable power isn’t a luxury—it’s a necessity. Whether you’re navigating mountain roads or camping under the stars, your inverter is the silent heartbeat of your mobile life.Not all inverters are created equal. While modified sine wave inverters o Read More

TESTIMONIALS

WHAT OUR CLIENTS SAY

“Their off grid pure sine power inverter compiance with (UL458)on first try. The dual China-Thailand production let us scale from 500 to 5,000 units/month without quality dips. More than a vendor – a power partner.”
Jack Wilson-CEO Energy Solutions 26 March, 2025
“Ordered 8,000 custom 3000W inverters with our branding and 50°C thermal specs. Sinemax’s Thailand factory delivered zero defects while cutting lead times by 40%. Finally, an Asian supplier that understands ‘rush’ means yesterday!”

Brian Murdoch– Supply Chain Director 11 December, 2024
”Initially, concerns existed about Chinese factories' communication efficiency, but Sinemax's team addressed them with English - fluent engineers and daily production photos. When the first batch of 2,000 12V 3000W inverters arrived, three had scratched casings. They swiftly air - freighted replacements within 72 hours - faster than our local suppliers.“ Richard Smith-Outback Mining Tech 09May, 2025

Quick Links

Support

Product Category

Contact Us

Add: Building No.3, Liu Fang Science Park, No.1 Fuda Road, Suzhou Industrial Park, Jiangsu, China
contact: kelly
Tel: 0512-62797076
Email: sales@sinemax.cn

Off-grid Inverter Expert