Trusted by global partners across 50+ countries, Pass Power delivers professional-grade power electronics built on 13+ years of manufacturing excellence.
Suzhou Maili Electrical Appliance Co., Ltd. is a professional manufacturer and exporter in the field of power inverters, battery chargers, and power supplies for more than 13 years. Our company was established in 2012 and is certified as a high-tech enterprise. Our factory covers 2,770 square meters and operates two production lines equipped with advanced manufacturing equipment.
Our company has established a comprehensive quality control system and has already passed ISO 9001:2015 quality system certification. We have obtained many internationally recognized certificates including CE, RoHS, IP30, and SGS, ensuring every product meets the highest global standards.
As a vertically integrated manufacturer, Pass Power controls every stage from component sourcing to final testing — enabling us to offer competitive pricing, rapid OEM/ODM turnaround, and consistent product reliability that global distributors and system integrators depend on.
Every Pass Power product undergoes rigorous testing and holds internationally recognized certifications, giving our global partners complete confidence in compliance and safety.
From voltage and current specifications to LCD displays and shell colors, Pass Power offers end-to-end product customization to match your brand and market requirements perfectly.
Pass Power engineers can configure output voltage to precisely match your regional grid standards or application requirements — from 12V DC to 240V AC and beyond. Whether you need single-phase or split-phase output, our team delivers accurate, stable voltage customization backed by full compliance testing.
Tailored current ratings ensure your power products perform optimally for specific loads. Pass Power supports custom amperage configurations across our inverter and charger product lines, from lightweight portable units to heavy-duty industrial solutions.
We customize input and output port configurations to meet your specific wiring standards and safety requirements. USB ports, AC outlets, DC terminals, and specialized connectors can all be tailored to your product design.
Integrate our inverters into your smart energy management ecosystem. Pass Power supports RS232, RS485, CAN Bus, Modbus, and custom communication protocols — enabling seamless connectivity with BMS, SCADA, and IoT monitoring platforms.
Build a distinctive brand identity with fully customized enclosures. Choose from a range of housing materials, finishes, and colors. We support custom logo printing, label design, and packaging to deliver a complete white-label product experience.
Flexible input pin configurations allow our products to be integrated into diverse electrical systems worldwide. We support country-specific plug standards and custom pin arrangements to meet your target market's wiring requirements.
We customize output socket types and quantities to match regional standards — UK, EU, US, AU, and more. Multiple socket configurations can be integrated into a single unit for maximum versatility in your target market.
Enhance user experience with custom LCD display configurations. We support multi-language displays, custom UI layouts, real-time data readouts (voltage, current, frequency, battery status), and branded splash screens for a premium product feel.
Pass Power inverters and chargers are trusted across a wide range of industries and applications — from off-grid solar systems to caravans, marine vessels, and emergency backup power.
Our competitive advantages are built on a foundation of engineering expertise, rigorous quality control, and a customer-first philosophy that has earned us long-term partnerships worldwide.
Pass Power's in-house R&D team continuously pushes the boundaries of power electronics — developing more efficient, smarter, and more reliable energy conversion solutions for a changing world.
Our R&D team specializes in high-efficiency power conversion topologies, thermal management design, and intelligent battery management systems. Every product generation incorporates lessons learned from global field deployments and customer feedback loops.
Pass Power's engineering capabilities span hardware design, embedded firmware development, and application-specific power system integration — enabling us to deliver solutions that perform reliably in extreme environments worldwide.
Our ISO 9001:2015 certified quality management system governs every stage of production — from incoming material inspection to final product burn-in testing — ensuring zero-defect delivery.
Pass Power pure sine wave inverters produce utility-grade AC power, making them safe and ideal for sensitive electronics, medical equipment, audio systems, and variable-speed motor applications.
Our integrated inverter-charger units are engineered for solar off-grid and hybrid systems, supporting seamless switching between solar, battery, and grid power sources for uninterrupted energy supply.
Suzhou Maili Electrical Appliance Co., Ltd. is a professional manufacturer and exporter in the field of power inverters, battery chargers, and power supplies for more than 13 years. Partner with Pass Power to unlock competitive pricing, flexible OEM/ODM solutions, and reliable global supply.
Real feedback from real customers across the globe — reflecting our commitment to product quality, after-sales support, and long-term partnership.
I have purchased many times and am very satisfied with their product quality and after-sales service. Pass Power consistently delivers on their promises — quality products, responsive support, and reliable shipping.
I have bought 4 of these inverters and the build quality and performance is excellent. The build quality is very good. I had one issue where the motherboard failed due to shipping damage. They sent me a replacement and allowed me to install it myself. Still working well after 5 years. Easy to talk to and very supportive.
Pass Power's commitment to customers extends far beyond the point of sale. Our comprehensive service framework ensures you always have the support you need — before, during, and after your purchase.
Pass Power inverters are engineered to integrate seamlessly into complete energy systems — connecting solar panels, battery banks, grid power, and AC loads in a single, intelligent power management solution.
Our system diagrams illustrate typical installation configurations for off-grid solar systems, hybrid grid-tie setups, and emergency backup power applications — helping installers and system integrators plan and deploy with confidence.
When both solar power and grid AC power are unavailable, Pass Power inverters automatically draw from battery reserves, ensuring uninterrupted power supply for critical loads in remote locations and emergency scenarios.
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