REC Alpha Pro-M 640W Solar Panel – REC640AA | HJT Bifacial 120 Half-Cell

REC Alpha Pro-M 640W Solar Panel – REC640AA | HJT Bifacial 120 Half-Cell Commercial Module   –   FULL PALLET (33 Modules)

Product Description:

The REC Alpha Pro-M 640W Solar Panel (REC640AA) sets a new benchmark for commercial and large-scale solar installations. Engineered with high-efficiency heterojunction (HJT) cell technology and a bifacial design, this 640W module delivers maximum power output and energy yield, even in limited space.

Its 120 half-cell format enhances durability and performance in high-temperature conditions, while bifacial glass-on-glass construction captures reflected sunlight from both sides of the panel. With class-leading efficiency and robust build quality, this REC panel is a top-tier choice for commercial rooftops, ground mounts, and solar farms.

Key Features and Benefits:

• Ultra-high 640W power output with industry-leading HJT cell technology

• Bifacial double-glass design for increased energy harvest from rear-side reflection

• 120 half-cut cells for better shade tolerance and lower resistance

• Excellent low-light and high-temperature performance

• Designed for large-scale installations with high ROI

• Durable build with enhanced snow, wind, and weather load resistance

• Long product and performance warranty backed by REC’s global reputation

• Compatible with most commercial racking and inverter systems

Technical Specifications:

• Model: REC640AA Alpha Pro-M

• Rated Power: 640 Watts

• Cell Technology: Heterojunction (HJT), Half-Cut

• Cell Count: 120 Half-Cells

• Module Efficiency: Approx. 21.3%

• Open Circuit Voltage (Voc): 63.6 V

• Short Circuit Current (Isc): 12.89 A

• Maximum Power Voltage (Vmp): 53.6 V

• Maximum Power Current (Imp): 11.94 A

• Operating Temperature: -40°F to +185°F (-40°C to +85°C)

• Front/Back Glass Thickness: 2.0 mm + 2.0 mm

• Frame: Anodized aluminum alloy (silver or black depending on batch)

• Dimensions: 89.7 in. (L) x 44.6 in. (W) x 1.38 in. (H)

• Weight: 80.5 lbs

• Warranty: 25-year product & linear power performance warranty

• Bifaciality: Up to 20% rear-side gain (depending on surface and mounting)

Applications:

• Utility-scale and commercial rooftop solar

• Agricultural and industrial installations

• Large residential systems with limited space

• Projects requiring high-efficiency, high-power modules