TW Solar TWMND 78HD 620-640W Solar Panel Series
Why Quality Matters?
Panel generations, certificates and warranty terms can change by destination market. OmniSol treats the page as a sourcing family, assigns an internal SKU, and confirms the exact listed model or a current-equivalent alternative before issuing a project quotation.
Power Rating:
Brand:
Module Type:
Certification:
RFQ inputs
Quantity, destination, certificate needs.
QC proof
Inspection and document review before shipping.
Export ready
Packaging and mixed-container planning.
Procurement Snapshot
Commercial details are confirmed by SKU, quantity and destination at RFQ stage.
RFQ checklist
Send these points with your inquiry for faster pricing.
Documents to confirm
Often sourced together
Technical Data
Specification values for buyer review and RFQ matching
| Brand | TW Solar |
|---|---|
| Model Series | TW Solar TWMND 78HD 620-640W |
| OmniSol SKU | OS-PAN-TW-TWMND-78HD-620-640 |
| Sourcing Basis | Listed family or current-equivalent model confirmed at RFQ |
| Power Range | 620-640W |
| Cell Technology | TNC(N-Type Monocrystalline Cell) |
| Dimensions | 2465x1134x30mm |
| Weight | 33.8kg |
| Maximum System Voltage | 1500V DC |
| Warranty | 12 years |
| Packing | 36 pcs/pallets |
| Certification | CE, TUV, IEC |
Product Overview
TWMND 78HD is Tongwei Solar's 78-cell N-type TOPCon bifacial module — 620–640W — from one of China's largest vertically-integrated cell and module manufacturers. Tongwei's direct cell-to-module production chain gives TWMND 78HD competitive cost positioning at the 620–640W power class against equivalent Tier-1 modules from brands that source cells externally.
The 78-cell format delivers high module current at relatively high voltage — useful for 1500 V string inverter designs where longer strings reduce DC combiner box inputs per kWp. Bifacial glass-glass construction suits utility ground mount projects in high-albedo environments where rear-side gain can be modelled in PVsyst or similar yield software.
OmniSol sources TWMND 78HD for buyers seeking competitive Tier-1 pricing backed by IEC certification. C-steel racking, 1500 V DC BOS and sea freight logistics can be coordinated alongside panel procurement for utility-scale project RFQs.
Applications
Residential rooftop PV projects
C&I rooftop solar projects
Ground-mounted PV projects
Project BOM sourcing with panels and BOS
Installation Notes
Confirm module dimensions and clamp zone before mounting design.
Confirm Voc, temperature coefficient and inverter MPPT limits before final string design.
Confirm destination certificate and warranty documents before shipment.
Certifications & Compliance
Frequently Asked Questions
Can OmniSol quote this panel with mounting and BOS parts?
Yes. We can treat the panel as part of a wider project BOM and match mounting, cables, connectors, protection, inverter-side accessories and export packing.
Is this exact panel always in stock?
Stock changes quickly. The listed model is a sourcing family under an OmniSol SKU; exact wattage, datasheet, certificate, warranty and delivery time are confirmed during RFQ.
Can I use this SKU if the brand generation changes?
Yes. Keep the OmniSol SKU as the inquiry reference, then send the preferred model, wattage, certificate requirement and destination market. We will check the exact model or current-equivalent alternatives before quotation.
Related Products
More components from the same application category.
Canadian Solar TOPBiHiKu6 CS6W 565-590W Solar Panel Series
Canadian Solar TOPBiHiKu6 CS6W 565-590W is handled as one OmniSol solar panel sourcing family for pr...
Canadian Solar TOPBiHiKu7 CS7N 690-720W Solar Panel Series
Canadian Solar TOPBiHiKu7 CS7N 690-720W is handled as one OmniSol solar panel sourcing family for pr...
Canadian Solar TOPHiKu6 CS6W 570-595W Solar Panel Series
Canadian Solar TOPHiKu6 CS6W 570-595W is handled as one OmniSol solar panel sourcing family for proj...