SOLARAYEN · SOLAR MODULES
More Power From Your Available Space
LONGi Hi-MO X10 670W solar panels combine back-contact cell technology with bifacial dual-glass construction. Solarayen supplies this model for wholesale orders and project procurement, with equipment selection based on your installation and destination.
Key Features
670W Rated Output
24.8% module efficiency at standard test conditions.
HPBC 2.0 Cells
Back-contact technology with a clean front appearance.
Bifacial Dual Glass
Rear-side generation depends on reflected light and installation conditions.
Temperature Performance
Pmax temperature coefficient: −0.26%/°C.
Technical Specifications
| Parameter | LR8-66HVD-670M |
|---|---|
| Maximum power (STC) | 670W |
| Module efficiency | 24.80% |
| Vmp / Imp | 41.38V / 16.19A |
| Voc / Isc | 50.12V / 16.86A |
| Cell configuration | 132 half-cells (6 × 22) |
| Dimensions / weight | 2382 × 1134 × 30mm / 32.5kg |
| Glass | 2.0mm + 2.0mm semi-tempered glass |
| Junction box | IP68, three diodes |
| Maximum system voltage | 1500V DC (IEC) |
| Maximum series fuse | 35A |
| Power tolerance | 0 to +3% |
| Operating temperature | −40°C to +85°C |
STC: 1000W/m², 25°C cell temperature, AM1.5. Values follow LONGi’s LR8-66HVD 640–670M product information. Confirm the supplied revision before ordering.
Front & Rear Design

Product illustration; refer to the manufacturer’s documents for exact construction and cable arrangement.
Applications

Application illustration.
Commercial Rooftops
For warehouses, factories and commercial buildings, subject to structural assessment and an approved installation design.
Ground-Mounted Arrays
Consider mounting height, row spacing and ground reflectivity when evaluating bifacial energy yield.
Wholesale & Project Support
Send your required quantity and destination country or port. We will confirm the module version, availability, packing plan, delivery time and EXW or FOB price. Suitable inverters, batteries and mounting accessories can be quoted separately for a complete equipment proposal.
Check inverter MPPT voltage, input current and cold-weather open-circuit voltage before finalizing the string design.
Frequently Asked Questions
Is this model bifacial?
Yes. Rear-side output varies with site reflectivity, mounting and shading. A fixed rear-side gain is not guaranteed.
Does the panel always generate 670W?
670W is its STC rating. Actual output changes with sunlight, temperature, orientation and system losses.
What warranty is available?
LONGi lists 15-year product and 30-year performance warranties for this series. Applicable terms and regional eligibility are confirmed for the supplied version.
Can you quote a complete solar system?
Yes. Tell us the project country, target system size and whether battery backup is required.
What is needed for a quotation?
Please provide quantity and destination. If you need system matching, include the inverter model or project requirements.
Manufacturer Product Information
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