LONGi Solar Hi-MO 7 LR8-66HGD 620W

Solar PanelsModel LR8-66HGD-620W

LONGi Hi-MO 7 LR8-66HGD 620W

Discover the LONGi Hi-MO 7 LR8-66HGD 620W solar panel, offering high efficiency and 620W power output for optimal energy solutions.

  • Maximum Power (Pmax): 620W
  • Open Circuit Voltage (Voc): 48.8V

Choose the Maximum Power (Pmax)

What sets the LR8-66HGD-620W apart from the other 6 models in the family: Maximum Power (Pmax) 620W; Open Circuit Voltage (Voc) 48.8V; Short Circuit Current (Isc) 15.18A; Voltage at Maximum Power (Vmpp) 40.1V; Current at Maximum Power (Impp) 15.17A; Module Efficiency 23.0%.

AED 293incl. VAT

In stock

  • Delivered within 3 business days, door to door, to every market we serve.
  • Dispatched the same business day for an order placed before 21:00 (Dubai time), or the next business day after.
  • Delivery charge: AED 165
  • 12-year warranty
Full SpecificationsDownload datasheet (PDF)

LONGi Hi-MO 7 LR8-66HGD 620W features

  • High-performance PV modules for utility

    High-performance PV modules for utility power plants

  • Advanced HPDC cell technology

  • High bifaciality and excellent power

    High bifaciality and excellent power temperature coefficient

  • LONGi lifecycle quality ensures long-term

    LONGi lifecycle quality ensures long-term performance

About the LONGi Hi-MO 7 LR8-66HGD 620W

The LONGi Hi-MO 7 LR8-66HGD 620W is a Hi-MO 7 solar panel engineered for residential rooftop installations, delivering a maximum power output of 620W at 23.0% module efficiency. Under standard test conditions it produces an open-circuit voltage (Voc) of 48.8V, a short-circuit current (Isc) of 15.18A, a voltage at maximum power (Vmp) of 40.1V and a current at maximum power (Imp) of 15.17A. The panel measures 2382×1134×30mm and weighs 32.5kg, with an Anodized aluminum alloy frame and Dual glass, 2.0+2.0mm heat strengthened glass. It operates across -40°C to +85°C, a maximum system voltage of DC1500V (IEC/UL) and a maximum series fuse rating of 35A. It withstands a front-side static load of 5400Pa and a rear-side static load of 2400Pa, with a Pmax temperature coefficient of -0.280%/°C, a Voc coefficient of -0.230%/°C and an Isc coefficient of +0.049%/°C. With a bifaciality of 80±5%, it also captures additional energy reflected onto its rear side. The Hi-MO 7 LR8-66HGD 620W is certified by IEC 61215, IEC 61730, UL 61730, ISO9001:2015, ISO14001:2015, ISO45001:2018 and IEC62941 and is backed by a 12-year product warranty and a 30-year performance warranty from LONGi Solar.

Specifications last updated 25 March 2026

LONGi Hi-MO 7 LR8-66HGD 620W full specifications

Environmental(12)

Temperature Coefficient of Isc+0.049%/°C
Temperature Coefficient of Voc-0.230%/°C
Temperature Coefficient of Pmax-0.280%/°C
Front Side Maximum Static Loading5400Pa
Rear Side Maximum Static Loading2400Pa
Hailstone Test25mm Hailstone at the speed of 23m/s
Operational Temperature-40°C to +85°C
Power Output Tolerance0~3%
Maximum System VoltageDC1500V (IEC/UL)
Maximum Series Fuse Rating35A
Protection ClassClass II
Bifaciality80±5%

Electrical(6)

Maximum Power (Pmax)620W
Open Circuit Voltage (Voc)48.8V
Short Circuit Current (Isc)15.18A
Voltage at Maximum Power (Vmpp)40.1V
Current at Maximum Power (Impp)15.17A
Module Efficiency23.0%

Mechanical(4)

Dimensions (L×W×H)2382×1134×30mm
Weight32.5kg
Frame MaterialAnodized aluminum alloy
GlassDual glass, 2.0+2.0mm heat strengthened glass

Certifications(7)

  • IEC 61215
  • IEC 61730
  • UL 61730
  • ISO9001:2015
  • ISO14001:2015
  • ISO45001:2018
  • IEC62941

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

What is the maximum power output and efficiency of the LONGi Hi-MO 7 LR8-66HGD 620W?

The LONGi Hi-MO 7 LR8-66HGD 620W has a maximum power output of 620W and a module efficiency of 23.0%.

What are the electrical specifications (Voc, Isc, Vmp, Imp) of the Hi-MO 7 LR8-66HGD 620W?

The Hi-MO 7 LR8-66HGD 620W has an open-circuit voltage (Voc) of 48.8V, a short-circuit current (Isc) of 15.18A, a voltage at maximum power (Vmp) of 40.1V and a current at maximum power (Imp) of 15.17A.

What are the physical dimensions and weight of the Hi-MO 7 LR8-66HGD 620W?

The Hi-MO 7 LR8-66HGD 620W measures 2382×1134×30mm and weighs 32.5kg.

What static loading can the Hi-MO 7 LR8-66HGD 620W withstand?

The Hi-MO 7 LR8-66HGD 620W withstands a front-side maximum static load of 5400Pa and a rear-side maximum static load of 2400Pa.

How does the Hi-MO 7 LR8-66HGD 620W perform across temperature changes?

The Hi-MO 7 LR8-66HGD 620W has a Pmax temperature coefficient of -0.280%/°C, a Voc coefficient of -0.230%/°C and an Isc coefficient of +0.049%/°C.

What is the maximum system voltage and fuse rating of the Hi-MO 7 LR8-66HGD 620W?

The Hi-MO 7 LR8-66HGD 620W has a maximum system voltage of DC1500V (IEC/UL) and a maximum series fuse rating of 35A.

What certifications does the Hi-MO 7 LR8-66HGD 620W have?

The Hi-MO 7 LR8-66HGD 620W is certified by IEC 61215, IEC 61730, UL 61730, ISO9001:2015, ISO14001:2015, ISO45001:2018 and IEC62941, meeting recognised international standards for safety and performance.

What warranty coverage is available for the Hi-MO 7 LR8-66HGD 620W?

The Hi-MO 7 LR8-66HGD 620W is backed by a 12-year product warranty and a 30-year performance warranty from LONGi Solar.

What frame and glass does the Hi-MO 7 LR8-66HGD 620W use?

The Hi-MO 7 LR8-66HGD 620W uses an Anodized aluminum alloy frame and Dual glass, 2.0+2.0mm heat strengthened glass.

What is the operating temperature range of the Hi-MO 7 LR8-66HGD 620W?

The Hi-MO 7 LR8-66HGD 620W operates across -40°C to +85°C.

Is the Hi-MO 7 LR8-66HGD 620W a bifacial solar panel?

Yes — the Hi-MO 7 LR8-66HGD 620W has a bifaciality of 80±5%, allowing it to capture additional energy reflected onto its rear side.

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