The Story
The LONGi Hi‑MO 7 LR8‑66HGD 625W bifacial solar module is engineered for high‑performance utility, commercial, and industrial solar installations. Built with advanced HPDC cell technology and a dual‑glass structure, this module delivers exceptional power density, enhanced bifacial energy gain, and long‑term lifecycle reliability.
Designed for demanding environments and large‑scale deployments, the 625W Hi‑MO 7 offers high efficiency of 23.1%, strong temperature coefficients, and certified durability for maximum long‑term output.
Key Features
High Power Output
- Maximum power output: 625W
- Module efficiency: 23.1%
- Power tolerance: 0 to +3%
Bifacial Energy Gain
- Bifaciality factor: 80 ± 5%
- Rear‑side energy gain increases total yield by 5–25% depending on installation conditions.
Durable Dual‑Glass Construction
- Dual heat‑strengthened glass (2.0 mm + 2.0 mm)
- Mechanical load resistance:
- Front: 5400 Pa
- Rear: 2400 Pa
- Hail impact tested with 25 mm hailstones at 23 m/s
Long‑Term Reliability
- 12‑year product warranty
- 30‑year linear power warranty
- First‑year degradation: less than 1%
- Annual degradation from Year 2–30: 0.4%
Superior Temperature Performance
- Temperature coefficient of Pmax: ‑0.28%/°C
- Lower operating temperatures due to half‑cell architecture
Technical Specifications
Electrical Characteristics (STC)
- Maximum Power (Pmax): 625W
- Open‑Circuit Voltage (Voc): 48.98V
- Short‑Circuit Current (Isc): 16.10A
- Voltage at Max Power (Vmp): 41.11V
- Current at Max Power (Imp): 15.21A
NOCT Performance
- Pmax: 475.8W
- Voc: 46.55V
- Isc: 12.93A
- Vmp: 39.07V
- Imp: 12.18A
Mechanical Specifications
- Dimensions: 2382 × 1134 × 30 mm
- Weight: 33.5 kg
- Frame: Anodized aluminium alloy
- Junction box: IP68 with three diodes
- Cable: 4 mm², ±1400 mm (customizable)
Operating Conditions
- Operating temperature: −40°C to +85°C
- Maximum system voltage: 1500V DC
- Maximum series fuse rating: 35A
- Protection class: Class II
Certifications
- IEC 61215
- IEC 61730
- UL 61730
- ISO 9001:2015
- ISO 14001:2015
- ISO 45001:2018
- IEC 62941
Ideal Applications
- Utility‑scale solar farms
- Commercial rooftops
- Industrial facilities
- Ground‑mount bifacial systems
- High‑albedo environments for maximum rear‑side gain
Specifications Document
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The LONGi Hi‑MO 7 LR8‑66HGD 625W bifacial solar module is engineered for high‑performance utility, commercial, and industrial solar installations. Built with advanced HPDC cell technology and a dual‑glass structure, this module delivers exceptional power density, enhanced bifacial energy gain, and long‑term lifecycle reliability.
Designed for demanding environments and large‑scale deployments, the 625W Hi‑MO 7 offers high efficiency of 23.1%, strong temperature coefficients, and certified durability for maximum long‑term output.
Key Features
High Power Output
- Maximum power output: 625W
- Module efficiency: 23.1%
- Power tolerance: 0 to +3%
Bifacial Energy Gain
- Bifaciality factor: 80 ± 5%
- Rear‑side energy gain increases total yield by 5–25% depending on installation conditions.
Durable Dual‑Glass Construction
- Dual heat‑strengthened glass (2.0 mm + 2.0 mm)
- Mechanical load resistance:
- Front: 5400 Pa
- Rear: 2400 Pa
- Hail impact tested with 25 mm hailstones at 23 m/s
Long‑Term Reliability
- 12‑year product warranty
- 30‑year linear power warranty
- First‑year degradation: less than 1%
- Annual degradation from Year 2–30: 0.4%
Superior Temperature Performance
- Temperature coefficient of Pmax: ‑0.28%/°C
- Lower operating temperatures due to half‑cell architecture
Technical Specifications
Electrical Characteristics (STC)
- Maximum Power (Pmax): 625W
- Open‑Circuit Voltage (Voc): 48.98V
- Short‑Circuit Current (Isc): 16.10A
- Voltage at Max Power (Vmp): 41.11V
- Current at Max Power (Imp): 15.21A
NOCT Performance
- Pmax: 475.8W
- Voc: 46.55V
- Isc: 12.93A
- Vmp: 39.07V
- Imp: 12.18A
Mechanical Specifications
- Dimensions: 2382 × 1134 × 30 mm
- Weight: 33.5 kg
- Frame: Anodized aluminium alloy
- Junction box: IP68 with three diodes
- Cable: 4 mm², ±1400 mm (customizable)
Operating Conditions
- Operating temperature: −40°C to +85°C
- Maximum system voltage: 1500V DC
- Maximum series fuse rating: 35A
- Protection class: Class II
Certifications
- IEC 61215
- IEC 61730
- UL 61730
- ISO 9001:2015
- ISO 14001:2015
- ISO 45001:2018
- IEC 62941
Ideal Applications
- Utility‑scale solar farms
- Commercial rooftops
- Industrial facilities
- Ground‑mount bifacial systems
- High‑albedo environments for maximum rear‑side gain
Specifications Document
