Reliable Solar Inverter & Solar Power Solutions Manufacturer In China

Reliable solar power solutions for importers, distributors, OEM brands, and project buyers worldwide.

Off-Grid Solar Engineered for Global Industry

Off-Grid Inverters, Hybrid Inverters, MPPT Controllers & OEM/ODM Solutions for Global Distributors.

15+ Years of Industry Experience、Factory Direct Supply、OEM/ODM Customization、Quality Control、Global Export Experience

Verified Factory Throughput

12,000 m²

Foshan production facility

250,000+

Annual inverter units built

120+

Export destination countries

100%

Full-load burn-in testing

Core Power Conversion Lines

Industrial topologies designed for uninterrupted duty in home ,office , off-grid telecommunication stations, remote commercial microgrids, and wholesale electrical networks.

1.0kW - 200.0kW

30A - 150A Ratings

All-In-One Cabinets

Solar Inverters

MPPT Charge Controllers

Integrated Power Systems

Low-frequency inverter architectures featuring isolated toroidal windings, 300% surge tolerance, and programmable low-voltage battery cut-offs.

Multi-stage tracking algorithms reaching 99.5% efficiency with wide PV array voltage windows and integrated RS485 communication protocols for remote diagnostics.

Pre-wired steel enclosures combining inverter chargers, solar input distribution, bypass transfer switches, and lithium battery management interfaces.

Quality Assurance

Component-Level Precision in Foshan

Every unit originates on automated surface-mount assembly lines, followed by optical solder inspection and selective wave soldering to prevent field fatigue under continuous thermal loading.

Before warehouse staging, every circuit board undergoes an eight-hour full-load thermal burn-in cycle inside closed environmental chambers, verifying zero variance against nominal voltage tolerances.

— PARTNERSHIP ADVANTAGES

Why Global Distributors Choose SWNPOWER

From automated surface-mount assembly in Foshan to direct engineer-to-engineer project alignment, SWNPOWER provides OEM brands and importers with scalable power conversion manufacturing built for long-term supply stability.

Verified Manufacturing Infrastructure

Deep OEM/ODM Customization

Operating 12,000 square meters of specialized power electronics production in Foshan, integrating automated SMT lines and dedicated environmental aging chambers to reliably output 250,000+ units annually.

Full-lifecycle bespoke engineering covering custom hybrid firmware, mechanical enclosure design, MPPT algorithm tuning, and branded packaging calibrated to regional grid compliance standards.

Rigorous Product Consistency

Direct Technical Communication

Predictable Supply Cooperation

Every unit undergoes multi-stage automated optical inspection and sustained full-load burn-in cycles before dispatch, guaranteeing repeatable field reliability across bulk shipments.

Work directly with power electronics R&D engineers who assess system topology, review custom schematics, and provide rapid bilingual documentation without intermediate sales delays.

Structured container scheduling, buffer stock reserves for critical semiconductors, and flexible production batches designed to protect procurement timelines against global supply chain volatility.

Direct Container Allocation & OEM Tooling

Discuss specific voltage parameters, customized metal chassis enclosures, and consolidated FOB shipment schedules directly with our Guangdong technical sales engineers.