Description

Trina Vertex 665W Bifacial Dual-Glass Module

The Trina Solar TSM-DEG21C.20 is a 665 W bifacial dual-glass module built on 210 mm monocrystalline PERC cells. With 21.4% module efficiency and a 0 ~ +5 W positive power tolerance, it is designed for commercial and industrial rooftops, ground-mount plants and agri-PV projects where power density and long-term yield matter. The dual-glass laminate improves durability in hot, humid and coastal environments, and the transparent back allows up to 25% additional energy gain from reflected light on high-albedo surfaces.

Key specifications (665 W)

Model	Trina Vertex TSM-DEG21C.20
Rated maximum power (Pmax)	665 W
Power tolerance	0 ~ +5 W
Module efficiency	21.4%
Maximum power voltage (Vmp)	38.3 V
Maximum power current (Imp)	17.39 A
Open circuit voltage (Voc)	46.1 V
Short circuit current (Isc)	18.50 A
Cells	132 monocrystalline 210 mm PERC
Dimensions	2384 x 1303 x 35 mm
Weight	38.7 kg
Front glass	2.0 mm AR-coated heat-strengthened glass
Back glass	2.0 mm heat-strengthened glass (white grid)
Frame	35 mm anodized aluminium alloy
Junction box	IP68
Connector	MC4 EVO2 / TS4
Maximum system voltage	1500 V DC
Maximum series fuse	35 A
Operating temperature	-40 to +85 C
NOCT	43 +/- 2 C
Pmax temperature coefficient	-0.34%/C
Product warranty	12 years
Power warranty	30 years, 85.0% at year 30

Typical applications

Industrial and commercial rooftop systems
Utility-scale ground-mount and tracker projects
Agri-PV, carports and other bifacial installations
Projects that need a 30-year power warranty

Supply, MOQ and delivery

Modules are supplied factory-direct from our Shanghai warehouse. Minimum order quantity, container loading plan and lead time are confirmed per order based on destination port and required volume, and mixed-wattage containers can be arranged on request. Each shipment includes the datasheet, IEC/UL certificates and packing list.

Certifications

IEC 61215, IEC 61730, UL 61730; ISO 9001:2015, ISO 14001:2015, ISO 45001:2018; IEC 62941:2019.

FAQ

Is this module bifacial?
Yes. The TSM-DEG21C.20 uses dual-glass construction and can deliver up to 25% additional power from the rear side, depending on albedo and mounting height.

What is the difference between the 640 W and 665 W versions?
Both use the same platform and dimensions; they are different power bins with slightly different voltage and current values. This page covers the 665 W version.

Can I order a mixed container?
Yes, subject to stock. Send your wattage mix, quantity and destination port and we will confirm.

Do you provide datasheets and test reports?
Yes. The full datasheet and certification documents are available on request, and both datasheet pages are shown below.

Request a quote for the Trina 665W module or browse the Trina Solar panel range.

操作解决