PV moduleLR8-66HYD-640M
640 W power class, back-contact bifacial dual-glass module.
- Rated power
- 640 W
- Module efficiency
- 23.7 %
LONGi / Hi-MO 9PV moduleBack-contact bifacial module
Back-contact, dual glass.132 half-cells, 635 to 670 W.
Solar modules / Utility
LR8-66HYD-650M
Back-contact bifacial dual-glass module · 635 to 670 W
A back-contact bifacial module that LONGi positions for utility plants. Select the power class, review the specifications and bring your requirements to VOLFAC.
- Rated power
- 650 W
- Module efficiency
- 24.1 %
- Cells
- 132
- Weight
- 32.7 kg
Select power classLR8-66HYD familyLR8-66HYD 635–670M family
Share your quantity and delivery destination.
Product overview
Back-contact cells behind two panes of glass.
The LR8-66HYD-650M is a Hi-MO 9 module with 132 back-contact half-cells (6 × 22) between two panes of 2.0 mm heat-strengthened glass. LONGi rates the type at 635 to 670 W with up to 24.8 % efficiency, a bifaciality of 75 ± 5 % and a temperature coefficient of −0.26 %/°C for maximum power. It measures 2,382 × 1,134 × 30 mm, weighs 32.7 kg and is built for 1,500 V systems.
- Back-contact cells132 half-cells (6 × 22); module efficiency up to 24.8 %.
- Dual glass, bifacial2.0 + 2.0 mm heat-strengthened glass; bifaciality 75 ± 5 %.
- −0.26 %/°CTemperature coefficient of maximum power.
- 1,500 V systemsMaximum system voltage 1,500 V DC (IEC/UL), IP68 junction box.
Technical specifications
Know the details.
LR8-66HYD-650MLONGiFamily LR8-66HYDModel LR8-66HYD-650M
Brand LONGiFamily LR8-66HYD 635–670MSelected model LR8-66HYD-650M
Electrical data at STC
- Maximum power (Pmax)
- 650 W
- Open-circuit voltage (Voc)
- 49.72 V
- Short-circuit current (Isc)
- 16.54 A
- Voltage at maximum power (Vmp)
- 40.98 V
- Current at maximum power (Imp)
- 15.86 A
- Module efficiency
- 24.1 %
- Power output tolerance
- 0 to +3 %
- STC
- AM 1.5, 1,000 W/m², 25 °C; test uncertainty for Pmax ± 3 %
Electrical data at NOCT
- Maximum power (Pmax)
- 495.3 W
- Open-circuit voltage (Voc)
- 47.25 V
- Short-circuit current (Isc)
- 13.28 A
- Voltage at maximum power (Vmp)
- 38.95 V
- Current at maximum power (Imp)
- 12.72 A
- NOCT
- AM 1.5, 800 W/m², 20 °C, wind 1 m/s
Temperature ratings and operating parameters
- Temperature coefficient of Pmax
- −0.260 %/°C
- Temperature coefficient of Voc
- −0.200 %/°C
- Temperature coefficient of Isc
- +0.050 %/°C
- Nominal operating cell temperature
- 45 ± 2 °C
- Operational temperature
- −40 °C to +85 °C
- Maximum system voltage
- 1,500 V DC (IEC/UL)
- Maximum series fuse rating
- 35 A
- Bifaciality
- 75 ± 5 %
- Protection class
- Class II
- Fire rating
- UL type 29; IEC Class C
Mechanical parameters
- Cell orientation
- 132 (6 × 22)
- Dimensions
- 2,382 × 1,134 × 30 mm (length and width ± 2 mm)
- Weight
- 32.7 kg
- Glass
- Dual glass, 2.0 + 2.0 mm heat-strengthened glass
- Frame
- Anodized aluminium alloy
- Junction box
- IP68, three diodes
- Output cable
- 4 mm², +400 / −200 mm or ± 1,400 mm; length can be customised
- Front side maximum static loading
- 5,400 Pa
- Rear side maximum static loading
- 2,400 Pa
- Hailstone test
- 25 mm hailstone at 23 m/s
Packaging
- Modules per pallet
- 36
- Modules per 20' GP container
- 144
- Modules per 40' HC container
- 720
Certificates
- Product certifications
- IEC 61215, IEC 61730, UL 61730
- Management systems
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2018; IEC 62941
Manufacturer warranty statement
- Materials and processing
- 12 years
- Linear power output
- 30 years
- First-year power degradation
- < 1 %
- Power degradation, years 2 to 30
- 0.35 % per year
Source: LONGi product pageLONGi — Hi-MO 9 product page and the datasheet LR8-66HYD 635~670M (V4.0, 12 January 2026).
Downloads
Product documents.
- Technical datasheetLR8-66HYD 635–670M · English · PDFLR8-66HYD 635–670M · English · PDF
- Installation manualLONGi PV modules · English · PDFLONGi PV modules, including LR8-66HYD-xxxM · English · PDF
- Limited warranty — utility projectsHi-MO 9 modules · English · PDFLONGi high-efficiency bifacial dual-glass modules, including LR8-66HYD-xxxM · English · PDF
- Limited warranty — distributed generationHi-MO 9 modules · English · PDFHi-MO 9, Hi-MO 7 and other modules for the distributed-generation market, including LR8-66HYD-xxxM · English · PDF
- CE declaration of conformityLONGi LR8-66 modules · English · PDFLONGi LR8-66 modules of type HYD, among others · English · PDF
Request a quotation.Share your quantity and delivery destination. We reply with a quotation for LR8-66HYD-650M, not an order confirmation.
LR8-66HYD familyLR8-66HYD 635–670M family
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- Rated power
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- Module efficiency
- 23.9 %
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- Rated power
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- Module efficiency
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