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 - 20.0kW

20A - 120A Ratings
All-In-One Cabinets

Single PhasePure Sine Wave 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.

— GLOBAL OEM & ODM PARTNERSHIP

Why Choose SWNPOWER

Engineered in our 12,000 m² Foshan facility, SWNPOWER delivers industrial-grade power conversion solutions backed by verified factory throughput, disciplined quality controls, and responsive engineering.

Verified Manufacturing

OEM & ODM Customization

Product Consistency

Our certified facility houses automated high-speed SMT placement, dual-wave soldering, and high-temp aging chambers outputting 250,000+ units annually under audited quality control.

Tailor chassis dimensions, silk-screen branding, custom LCD interfaces, proprietary MPPT tracking algorithms, and regional AC voltage standards to fit specific market requirements.

Every conversion board undergoes automated optical inspection, component batch traceability, and 100% full-load thermal burn-in to ensure zero-drift batch performance across orders.

Direct Technical Communication

Long-Term Supply Cooperation

Partner directly with bilingual power electronics engineers for circuit reviews, firmware adaptations, and prompt troubleshooting without broker miscommunication.

Secure guaranteed quarterly capacity allocations, locked raw component schedules, direct factory container loading, and responsive warranty parts dispatching for sustainable growth.

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.