Home / About Us / Why Sinemax

Off-grid Inverter Expert

Suzhou Sinemax Electronics Technology Co., Ltd. specializes in R&D, manufacturing and sales of automotive and off - grid inverters. Leveraging our expertise in vehicle power supply and “China + Thailand Manufacturing” model, we offer innovative vehicle power solutions globally.​

Our main products include 12V/24V 400W - 6000W automotive and off - grid inverters, and 100W - 1000W lithium - battery inverters, covering modified and pure sine - wave series. All products are CE, ETL and ROHS certified, and applicable to automotive power supply, off - grid PV systems, outdoor tools, RVs and households.​

We provide professional OEM & ODM customization services, from research to product customization. Thanks to the China - Thailand dual - manufacturing model, we help partners gain competitive edges in global markets.
0 +
+
Manufacturing Base
0 +
+
Years R&D Experience Team
0 +
+
Product Line
0 +
+
Global Partners

Product Guide

More >>
Our off-grid inverters are engineered to high efficience. We select high-quality core components from globally renowned brands to ensure outstanding basic performance and long service life. 
Advanced heat dissipation structures and materials are adopted to achieve efficient thermal management, ensuring stable operation even under high-temperature and high-load conditions and extending the lifespan of key components.
Sturdy and reliable structure: The shell is made of high-strength and corrosion-resistant aluminum alloy.Precision circuit design: The engineering team meticulously optimizes the circuit layout and design to reduce energy loss, enhance the overall power generation of the system, and at the same time ensure operational stability and anti-interference capability.

One-stop Solution

More >>
Your Complete OEM/ODM Power Solution Partner

We deliver end-to-end customization:
• Design: 10+ year engineering team handles schematics to prototypes
• Production: Flexible customization ability with 50MOQs with private label option
• Compliance: Pre-certified for CE/ETL/RoHS global markets
• Quality: Fully tested units before delivery 
• Support: 1:1 project management from concept to delivery
Our History
  • 2023
  • 2020
  • 2016
  • 2008
  • 2003
  • 1998
  • The Brand Further Expanded Its Product Line

    The brand further expanded its product line and launched a multifunctional portable power series, including LED lighting, wireless charging, SOS distress signal, emergency power outage, flashlight, Bluetooth speaker, and other functions. The diverse functions of these products make the brand competitive in the market and further consolidate its position.
  • The Power Battery Portable Power Series Was Launched

    The power battery portable power series was launched, including lithium batteries, nickel-hydrogen batteries, lithium polymer batteries, and other models. These products have high energy density and long lifespan, meeting the high power supply requirements of users.
  • The Brand Started To Develop Fuel Cell Portable Power Supplies And Launched Two Models

    The brand started to develop fuel cell portable power supplies and launched two models: hydrogen fuel and methanol fuel. These products perform well in outdoor environments with long-term power supply shortages, providing users with lasting and reliable power support.
  • The Lithium Battery Portable Power Series Was Launched

    The lithium battery portable power series was launched, including small, large capacity, and fast charging models. The high quality and reliability of the products have been recognized by users, and the brand has gradually established a good reputation.
  • The First Solar Portable Power Product Was Launched

    The first solar portable power product was launched, which was warmly welcomed by the market. The product has efficient solar charging function and portable design, making it an ideal choice for outdoor enthusiasts.
  • The Brand Was Sstablished

    The brand was established, focusing on the research and production of outdoor portable power supplies. It established its own production base and research and development team, and began the brand's development journey.
      Awarded multiple international certifications and patents.​​​​​​​
                   Our certified OEM power solutions deliver high-efficiency off-grid inverters, solar energy systems, and custom 12V/24V power supplies
backed by ISO 9001, CE, ETL and ROHS global certifications for reliable B2B applications.
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
Get in Touch

This field is required

This field is required

This field is required

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
Copyright © 2025 Suzhou Sinemax Electronics Technology Co., Ltd. All Rights Reserved. Sitemap
We use cookies to enable all functionalities for best performance during your visit and to improve our services by giving us some insight into how the website is being used. Continued use of our website without having changed your browser settings confirms your acceptance of these cookies. For details please see our privacy policy.
×