The LONGi Solar 650W Hi-MO X10 (Part No: LR7-72HVD-650M) is a high-efficiency N-type monocrystalline bifacial solar module built on LONGi's HPBC (Hybrid Passivated Back Contact) 2.0 cell technology. Its dual glass construction and 144 half-cut cell layout deliver up to 24.1% module efficiency, with power generated from both the front and rear faces of the panel. Aimed at large-scale, commercial, and utility installations, it combines strong energy yield with LONGi's long-term reliability record.
Rated Power
650 Wp
Efficiency
24.1%
Cell Type
N-type HPBC, bifacial
Construction
Dual glass, 144 half-cells
Weight
33.5 kg
Power Warranty
30-year linear
Bifacial Rear-Side Gain: As a bifacial module, additional power is generated from light reflecting onto the rear face. Depending on ground reflectivity (albedo) and mounting height, this can add a further 5–25% power output on top of the front-side rating shown above — the higher the albedo, the greater the gain.
Two-Part Warranty Structure: LONGi's warranty for this module is split into a 15-year warranty covering materials and workmanship, plus a separate 30-year linear power output warranty guaranteeing performance over the module's operating life. Check both terms with your supplier before relying on a single "30-year" figure.
Professional Installation Required: This module must be installed by qualified solar professionals, following LONGi's installation guidelines and current local electrical regulations. The maximum system voltage is 1500V DC and the maximum series fuse rating is 30A — system design must stay within these limits.
HPBC 2.0 Cell Technology
Hybrid Passivated Back Contact cells route all connections to the rear of the cell, removing front-side gridlines for a cleaner light-capturing surface and improved low-light response.
Dual Glass Durability
A glass-glass construction offers greater resistance to moisture ingress and mechanical stress than a standard backsheet design, supporting a longer usable service life.
Half-Cell Layout
144 half-cut cells reduce resistive losses and limit the impact of partial shading or hotspots, improving reliability across the module's lifespan.
Low Long-Term Degradation
First-year power degradation is under 1%, dropping to just 0.35% annually from year 2 to 30 — supporting strong energy yield over a multi-decade system lifetime.
Strong Mechanical Loading Rating
Rated to withstand 5400Pa on the front face and 2400Pa on the rear, plus 25mm hailstone impact at 23m/s, suiting demanding rooftop and ground-mount environments.
Silver Frame, White Backsheet Aesthetic
An anodised aluminium silver frame gives a clean, uniform appearance suited to visible commercial and utility-scale installations.
| Electrical Characteristics (STC) |
| Maximum Power (Pmax) |
650 Wp |
| Module Efficiency |
24.1% |
| Open Circuit Voltage (Voc) |
54.22 V |
| Short Circuit Current (Isc) |
15.14 A |
| Voltage at Max Power (Vmp) |
44.87 V |
| Current at Max Power (Imp) |
14.49 A |
| Power Tolerance |
0 to +3% |
| Bifaciality |
70±5% |
| Maximum System Voltage |
1500V DC |
| Maximum Series Fuse Rating |
30A |
| Temperature Ratings |
| Operational Temperature |
-40°C to +85°C |
| Nominal Operating Cell Temperature (NOCT) |
45±2°C |
| Temperature Coefficient of Isc |
+0.050%/°C |
| Temperature Coefficient of Voc |
-0.200%/°C |
| Temperature Coefficient of Pmax |
-0.260%/°C |
| Mechanical Specifications |
| Cell Type |
Monocrystalline N-type HPBC, 144 half-cut cells (6×24) |
| Glass |
Dual glass, 2.0+2.0mm semi-tempered |
| Frame |
Anodised aluminium alloy, silver |
| Backsheet |
White |
| Junction Box |
IP68, three diodes |
| Dimensions (L x W x H) |
2382 x 1134 x 30 mm |
| Weight |
33.5 kg |
| Front Side Maximum Static Loading |
5400 Pa |
| Rear Side Maximum Static Loading |
2400 Pa |
| Hailstone Test |
25mm hailstone at 23 m/s |
| Protection Class |
Class II |
| Degradation, Certification & Warranty |
| First-Year Power Degradation |
<1% |
| Annual Degradation (Year 2–30) |
0.35% |
| Certifications |
IEC 61215, IEC 61730, ISO 9001, ISO 14001, ISO 45001, IEC 62941 |
| Materials & Processing Warranty |
15 years |
| Linear Power Output Warranty |
30 years |
What is HPBC cell technology, and why does it matter?
HPBC (Hybrid Passivated Back Contact) moves all electrical connections to the rear of the cell, removing the visible gridlines found on the front of conventional cells. This gives a cleaner light-capturing surface, improves low-light performance, and contributes to the module's 24.1% efficiency rating.
How much extra power can I expect from the bifacial rear side?
Rear-side gain depends on ground reflectivity (albedo) and mounting height, and can add roughly 5% to 25% on top of the front-side power rating. Highly reflective surfaces such as light-coloured gravel, white membrane roofing, or snow give the strongest gains.
What warranty does this module come with?
LONGi provides a 15-year warranty covering materials and workmanship, separate from a 30-year linear power output warranty that guarantees the module's performance degrades no faster than the rated schedule over its operating life.
What inverters and mounting systems is this module compatible with?
This module is compatible with standard PV inverters and mounting systems, provided the system design respects the module's 1500V DC maximum system voltage and 30A maximum series fuse rating.
What applications is this module best suited to?
Its dual glass build, high static loading rating, and bifacial yield make it well suited to utility power plants, commercial rooftops, and ground-mounted systems where durability and additional rear-side energy capture provide the most benefit.
