LONGi Hi-MO 7 615W Bifacial Solar Panel

Description Solar panel LONGi Hi-MO 7 LR8-66HGD-615M 615W bifacial HPDC — efficiency 22.8%, glass-glass, 1500V, IP68, degradation 0.4%/year, warranty 12/30 years

LONGi Hi-MO 7 LR8-66HGD-615M (615 W) — a high-power next-generation bifacial module for commercial and industrial solar power plants, where maximum generation, low degradation, and stable operation in heat are important. HPDC (High-Performance Dual-junction Cell) technology reduces operating temperature and improves performance in real-world conditions, which is especially noticeable in summer and on large panel arrays.

The bifacial design (bifaciality factor 80±5%) makes it possible to obtain additional energy from the rear side with proper installation (light surface/height/tilt). The "glass-glass" format (2.0+2.0 mm) increases service life and resistance to the environment. For projects, it is also important that the module is designed for a 1500V DC system, and the junction box has IP68.

Specifications

• Manufacturer/series: LONGi Solar Hi-MO 7
• Model: LR8-66HGD-615M
• Type: monocrystalline, bifacial
• Cell technology: HPDC, half-cut 132 cells
• Rated power (Pmax): 615 W
• Efficiency: 22.8%
• Voc (open-circuit voltage): 48.58 V
• Isc (short-circuit current): 16.00 A
• Vmp (voltage at Pmax): 40.71 V
• Imp (current at Pmax): 15.11 A
• Maximum system voltage: 1500 V DC
• Bifaciality: 80±5%
• Temp. coefficient of power Pmax: -0.28%/°C
• Temp. coefficient of voltage: -0.23%/°C
• Temp. coefficient of current: 0.045%/°C
• Operating temperature: -40…+85°C
• Construction: glass-glass 2.0 + 2.0 mm, frame aluminum
• Protection rating (junction box): IP68
• Maximum static load: up to 5400 Pa
• Dimensions: 2382×1134×30 mm
• Weight: 32.5 kg
• Package contents: module + 4 mm2 cables with connectors
• Warranty: 12 years for materials (144 months), 30 years linear power
• Degradation: <1% in the 1st year, then 0.4%/year (per description)

Additionally

• For large solar power plants and commercial facilities: 615W + 1500V DC → fewer modules and system losses
• For hot regions/roofs/fields: HPDC + low temperature coefficient of power
• For bifacial installations: maximum gain with a light-colored surface and proper clearance
• For a long horizon: glass-glass, IP68, 30-year linear warranty

Note

• Additional bifacial generation depends on the surface reflectivity (albedo), installation height, and rear-side shading.
• Nameplate values for Voc/Vmp/Isc/Imp may vary slightly depending on the batch and STC conditions — for the product card it is better to attach the datasheet for the specific shipment.
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