LONGi 635W Bifacial Solar Panel

LONGi 635W Bifacial Solar Panel Overview

The LONGi 635W Bifacial Solar Panel belongs to the Hi-MO X10 Explorer series and is designed for solar installations that require high module output. It combines BC cell technology, a bifacial structure and dual-glass construction to support energy generation from both sides of the module when the installation environment provides suitable rear-side illumination.

With a rated power of 635 watts and module efficiency of 23.5%, this panel is suitable for commercial rooftops, industrial solar installations and larger projects where efficient use of available space is important. Its large module format can help installers achieve the required solar capacity with fewer modules than lower-wattage panels, depending on the project design.

The panel features an anodized aluminium alloy frame, a dual-glass structure and an IP68-rated junction box. Correct mounting, ventilation, cleaning and electrical protection remain important for safe operation and long-term performance.

Key Features and Benefits

BC Cell Technology

The Hi-MO X10 Explorer series uses BC cell technology as a central part of its module design. LONGi also highlights TaiRay wafer technology within the series. These technologies are relevant when comparing cell architecture, module efficiency and long-term performance characteristics.

For buyers, cell technology should be considered alongside rated power, temperature coefficient, degradation, installation conditions and warranty coverage rather than wattage alone.

Bifacial Energy Generation

The bifacial design allows the panel to receive sunlight from the front and reflected light from the rear. Its stated bifaciality rating is 70 ± 5%, which describes the rear-side power response relative to the front side under the applicable test conditions.

The actual energy gain from the rear side depends on mounting height, surface reflectivity, rear clearance, shading and the amount of light reaching the back of the panel. A low-clearance rooftop installation may produce a different result from an elevated installation above a reflective surface.

High Module Efficiency

With 23.5% module efficiency, the LONGi 635W module converts a substantial proportion of the sunlight falling on its surface into electrical power under standard test conditions.

Higher efficiency can help make better use of available roof space. The final panel count still depends on the required system capacity, roof dimensions, mounting arrangement and inverter input limits.

Low Power Degradation

The panel has a stated first-year power degradation of less than 1%, followed by 0.35% annual degradation from years 2 to 30 under the applicable performance warranty framework.

Lower degradation supports long-term energy production, although actual output will also depend on operating temperature, dust, shading, orientation, maintenance and other site conditions.

Dual-Glass Construction

The module uses 2.0 + 2.0 mm semi-tempered dual glass with an anodized aluminium alloy frame. Its maximum static loading rating is 5400 Pa on the front side and 2400 Pa on the rear side.

Installers should use suitable mounting hardware and follow applicable installation requirements to provide proper support and avoid mechanical stress.

Best For

The LONGi 635W Bifacial Solar Panel is suitable for consideration in:

• Commercial solar systems requiring high output from each module.

• Industrial rooftops with suitable structural capacity and installation space.

• Large solar projects where module efficiency and long-term output matter.

• Installations that can make practical use of rear-side light.

• Solar installers and dealers looking for high-wattage bifacial modules.

• Projects where long-term performance warranty coverage is an important purchasing consideration.

When Another Panel May Be Better

This module may not suit every installation. Its large dimensions can make placement difficult on small roofs, while its 33.5 kg weight requires an appropriate mounting structure and assessment of roof loading.

Installations with very limited rear-side illumination may receive less benefit from bifacial generation. The panel must also meet the selected inverter’s voltage and current limits. Where space, electrical limits or mounting arrangements differ, the system designer should assess the complete installation before finalising the module choice.

Cell and Module Technology

The Hi-MO X10 Explorer series combines BC cell technology with a bifacial module structure. The bifacial design allows the rear side to contribute to generation when reflected or ambient light reaches the back of the module.

This model contains 144 cells arranged in a 6 × 24 orientation. The dual-glass construction and aluminium alloy frame form the main mechanical structure. Its exact model code is LR7-72HVD-635M, which should be checked when confirming product identity, electrical characteristics and warranty eligibility.

Technical Specifications

Performance and Degradation

The panel’s temperature coefficient of maximum power is −0.260%/°C. This indicates that module power decreases as cell temperature rises above the reference temperature, all else being equal. In Pakistan’s hot summers, proper mounting clearance and airflow can help manage operating temperature.

The stated degradation figures are less than 1% in the first year and 0.35% annually from years 2 to 30. The performance warranty framework indicates 88.85% output at year 30.

These figures relate to the specified performance conditions. Actual solar generation will vary with sunlight, temperature, shading, dust, orientation and other installation factors.

Performance Considerations for Pakistan

Pakistan’s strong solar resource creates opportunities for residential, commercial and industrial solar installations. However, high summer temperatures, dust accumulation and mounting conditions can affect real-world panel output.

For the LONGi 635W module, consider the following during system planning:

• Ventilation: Leave suitable clearance beneath the panels to support airflow.

• Cleaning: Remove dust and other deposits using appropriate cleaning practices.

• Bifacial Installation: Consider roof reflectivity, mounting height and rear-side shading when estimating additional energy.

• Electrical Design: Check the panel’s voltage and current against the selected inverter and string configuration.

• Structural Support: Account for the panel’s dimensions and weight when assessing roof mounting.

• Safety: Use appropriate earthing, mounting hardware, cables and electrical protection.

LONGi 635W Bifacial Solar Panel Price in Pakistan

The longi 635w bifacial solar panel price in pakistan is an important consideration for buyers comparing high-wattage solar modules.

The current price of LONGi 635W Bifacial Solar Panel in Pakistan is Rs. 26,924 per panel.

The final project cost depends on the number of panels required, mounting structure, inverter selection, cabling, protection equipment and installation requirements. Dealers and installers planning bulk purchases can contact Hajvery Solar Energy to discuss current availability and quantity-based pricing.

LONGi 635W Bifacial Solar Panel Authenticity and Verification

Before purchasing a LONGi 635W Bifacial Solar Panel, check the model code, product identification and applicable warranty details. The model should match LR7-72HVD-635M.

Buyers should also confirm that the selected module suits their installation design. A panel’s wattage alone does not determine compatibility with every inverter. Open-circuit voltage, operating voltage, short-circuit current, operating current and the inverter’s permissible input limits all matter.

Hajvery Solar Energy can help buyers discuss product identification and system compatibility before ordering.

You can also check your LONGi 635W Bifacial Solar Panel through the official product verification service. First, check the exact model number and product details to help ensure that you are verifying the intended panel.

Panel verification link:
LONGi 635W Bifacial Solar Panel verification.

Warranty

The LONGi 635W Bifacial Solar Panel carries a 15-year warranty for materials and processing and a 30-year warranty for extra linear power output.

These are two separate forms of coverage. The product warranty relates to materials and processing, while the performance warranty addresses the panel’s warranted power output over time. Applicable warranty terms, exclusions and claim requirements should be confirmed before purchase.

Before You Buy

Before selecting the LONGi 635W module, check the following:

• Confirm that 635W rated power fits the intended system capacity.

• Check the inverter’s maximum DC voltage and MPPT operating range.

• Verify the permissible operating and short-circuit current for each input.

• Calculate string voltage under the expected minimum temperature.

• Confirm roof dimensions, mounting clearance and structural capacity.

• Assess whether the installation can benefit from bifacial generation.

• Confirm the product and performance warranty terms.

• Check current price and availability before placing an order.

Frequently Asked Questions

Is the LONGi 635W Bifacial Solar Panel suitable for commercial installations?

Yes. Its high rated output and bifacial design make it an option for commercial and industrial solar projects, provided the installation layout and electrical design are suitable.

What is the efficiency of the LONGi 635W solar panel?

The module efficiency is 23.5% under the specified test conditions.

Is the LONGi 635W solar panel bifacial?

Yes. It has a bifacial design with a stated 70 ± 5% bifaciality rating. Actual rear-side contribution depends on the installation and surrounding surfaces.

What is the model number of the LONGi 635W panel?

The exact model is LR7-72HVD-635M, from the Hi-MO X10 Explorer series.

What are the dimensions and weight of this panel?

The panel measures 2382 × 1134 × 30 mm and weighs 33.5 kg.

What is the warranty of the LONGi 635W Bifacial Solar Panel?

It has a 15-year warranty for materials and processing and a separate 30-year warranty for extra linear power output. Applicable terms should be checked before purchase.

What is the LONGi 635W Bifacial Solar Panel price in Pakistan?

The current price of LONGi 635W Bifacial Solar Panel in Pakistan is Rs. 26,924 per panel. Contact Hajvery Solar Energy to confirm availability and quantity-based pricing.

Buy LONGi 635W Bifacial Solar Panel from Hajvery Solar Energy

Hajvery Solar Energy serves solar buyers, installers and dealers from 280K Block J-1, Johar Town, Lahore. Contact the team to discuss the LONGi 635W Bifacial Solar Panel, product availability and system compatibility.

For more options, visit LONGi Solar Panels in Pakistan.