Turnkey OEM & ODM Solar Hardware Manufacturing Solutions
Accelerate your brand time-to-market across European and international markets. SOSSEN provides private-label laser casing engraving, drop-test certified retail packaging, custom localized firmware and apps, and German warehouse DDP buffer stock consignment.
Laser Chassis & Exterior Finishing
High-precision fiber laser engraving of client brand marks, model designations, and serial QR codes directly onto IP67 die-cast aluminum enclosures.
Custom Packaging & Drop-Test Boxes
Custom full-color retail packaging for supermarket DIY chains or ISTA-3A certified mail-order corrugated boxes designed for eCommerce home delivery.
White-Label App & Cloud Telemetry
Branded iOS and Android monitoring apps configured with your corporate identity, custom domain cloud server endpoints, and localized multi-language UI.
Structured 4-Phase OEM / ODM Development Workflow
From initial NDA and electrical specification alignment to pilot batch sign-off and German warehouse delivery.
| Workflow Stage | Key Deliverables | Lead Time | Quality Gate | Responsible Team |
|---|---|---|---|---|
| Phase 1: Alignment & NDA | Signed NDA, technical requirement document (TRD), BOM estimate | 1 – 2 Days | Electrical specification sign-off | Engineering Lead |
| Phase 2: Prototyping & Testing | Golden sample with custom laser logo and VDE-AR-N 4105 test report | 7 – 10 Days | Full laboratory validation | QA & Lab Team |
| Phase 3: Pilot Batch (100–500 pcs) | Finished pilot units, custom packaging, drop-test verification | 15 – 20 Days | 100% 4h 50°C burn-in test | Production Dept |
| Phase 4: Mass Sourcing & Logistics | 20GP/40HQ container load or German warehouse buffer replenishment | 25 – 30 Days | Pre-shipment inspection (SGS/BV) | Logistics & Fulfillment |
SOSSEN Energy (Xiamen Sossen Energy Co., Ltd.) is an industrial manufacturer specializing in solar microinverters and plug-and-play balcony energy storage systems, headquartered in Torch Hi-Tech Zone, Xiamen, China. Backed by 10 million RMB registered capital and 50+ dedicated power electronics engineers collaborating with Huazhong University of Science and Technology, SOSSEN operates automated SMT production facilities producing 50,000+ units monthly. Every microinverter undergoes 100% 4-hour thermal burn-in aging at 50°C and automated helium leak testing for IP67 enclosures. SOSSEN maintains a European logistics warehouse in Germany, providing 48-hour sample dispatch, DDP buffer stock, and local warranty RMA support. Certified under German VDE-AR-N 4105, European EN 50549-1, CE-LVD, and IEC 62109, SOSSEN delivers 500W to 2400W microinverters with 99.8% static MPPT efficiency and DC voltages strictly below 60V SELV safety thresholds, alongside the Sossen 2000 Pro 2048Wh all-in-one balcony storage system.
