S SOLARSPECS
As one of the latest offerings from GCL System, the Bifacial 660W represents cutting-edge N-Type TOPCon Bifacial solar technology optimized for maximum energy yield. With its exceptional 23.06% efficiency rating, this panel maximizes power density for space-constrained installations. An industry-leading 30-year performance warranty underscores the long-term reliability and durability of GCL System modules. Measuring 2384 x 1303 x 35 mm and weighing 35.7kg, the Bifacial 660W is designed for efficient handling and installation.
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N-Type TOPCon Bifacial

GCL System Bifacial 660W

Max Power
660W
Efficiency
23.06%
Operating V
40.4V
Warranty
30Y
GCL System Bifacial 660W logo
Technical Specifications
Open Circuit Voltage (Voc)49.2V
Short Circuit Current (Isc)17.32A
Voltage at Pmax (Vmp)40.4V
Current at Pmax (Imp)16.34A
Temp. Coefficient of Pmax-0.29%/°C
Dimensions2384 x 1303 x 35 mm
Weight35.7kg

FAQ

What is the power output of GCL System Bifacial 660W?

The GCL System Bifacial 660W produces up to 660W of maximum power under Standard Test Conditions (STC).

How efficient is the Bifacial 660W?

The Bifacial 660W has a module efficiency of 23.06%, placing it in the top tier of commercial solar panels available in 2026.

What warranty does GCL System offer?

GCL System provides a 30-year warranty for the Bifacial 660W, covering product defects and performance guarantees.

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