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Luxor Solar LX-635M/182R-132+ GG

635 Wp HJT Bifacial 88%
ComparePV verdict

Efficiency leader, no clear weak spot

Rank 191 of 14,129
Compare panels Datasheet PDF
Power (Wp)
635
Strong · top 23%
Efficiency (%)
23.75
Strong · top 4%
Density (Wp/m²)
235.1
Strong · top 7%
Temp (%/°C)
-0.240
Typical · median -0.240
Weight (kg)
33.5
Typical · median 33.6 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Luxor Solar ECO LINE N-TYPE HJT GLASS-GLASS BIFACIAL series is an advanced solution based on heterojunction technology (HJT), which sets new standards of efficiency even in difficult lighting conditions. By combining N-type cells with a glass-glass construction, these modules effectively eliminate the problem of voltage- and light-induced degradation, offering users unprecedented durability and yield stability for decades. A key differentiator is bifacial activity, allowing for the generation of additional energy from radiation reflected off the ground. Combined with an exceptionally low temperature coefficient, this ensures that the system works much more efficiently on hot days than standard competitor modules. The glass-glass construction provides the highest mechanical and chemical resistance, making these panels an ideal choice for installations in demanding environments or on roofs with limited space. By choosing this series, investors receive maximum yield per unit area and a guarantee of longevity that traditional panels with backsheet foil do not provide. This is a premium-class product dedicated to modern single-family homes and professional photovoltaic farms, where the lowest levelized cost of energy and failure-free operation for years are of key importance.

Ranking

78 panels in the segment HJT 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.75% 22.60% Strong · top 4% 545
Power density 235.1 226.0 Strong · top 7% 777
Temperature coefficient -0.240 -0.240 Typical 13
Weight per kWp 52.8 54.7 Typical 6,484
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

7 positive · 2 caution
Best for

Residential, utility-scale and hot-climate.

Strengths
23.75% module efficiency

Top 4% of the HJT 600-650 W segment, against a median of 22.60%. Ranked 545th in the whole database.

235.1 watts per square metre

Top 7% of the HJT 600-650 W segment, against a median of 226.0. Ranked 777th in the whole database.

What owners get
Leading efficiency in HJT segment

Maximum efficiency of 24.12% outperforms all three key peers: Runergy HY-DH156N8 (23.1%), Resun RS9K-M (22.79%), and Canadian Solar HiHero+ Bifacial HJT (23.9%) at the same 645 Wp peak power.

N-type HJT technology with low degradation

N-type heterojunction cells virtually eliminate LID/PID degradation and feature a low power temperature coefficient, resulting in higher energy yield on hot days compared to standard PERC modules.

Bifacial glass-glass construction

Two-sided activity allows for additional energy gain from albedo reflected off the ground, while the glass-glass encapsulation (instead of backsheet) provides higher mechanical and chemical resistance, especially valuable in harsh environments.

30-year product and power warranty

The manufacturer offers 30 years of both product and power warranty - exceeding the typical market standard of 12-25 years on product, lowering long-term investment risk.

Wide power range and 8 variants

The 455-645 Wp range across 8 variants allows the series to fit both single-family homes and professional PV farms without changing cell technology.

Trade-offs
Manufacturer not on BNEF Tier 1 list

Luxor Solar (Germany, founded in 2007) does not appear on the current BNEF Tier 1 list, which may complicate obtaining bank financing for large utility-scale projects despite the brand's European origin.

Higher weight of glass-glass module

The glass-glass design, while increasing durability, is heavier than backsheet panels, potentially requiring reinforced mounting structures, especially on roofs with limited load capacity.

Notes from the database
  • 23.8% module efficiency - 1.1pp better than the HJT 600-650W median of 22.6%
  • 235.1 W/m² power density - 9.1 W/m² more than HJT 600-650W median (226.0 W/m²), more power per roof area
  • At -0.24%/°C, hot weather performance is typical for HJT 600-650W panels
  • Bifacial design (88% factor) captures reflected light - adds 4-13% yield on ground-mount or white roof
  • In the top 4% for efficiency among all HJT panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 635 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.75 % Strong Segment median 22.60%
Vmpp · Impp 42.82 V · 14.84 A Operating point at max power
Voc · Isc 52.54 V · 15.79 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 33.5 kg Typical Typical · median 33.6 kg
Cells 132 · HJT Monocrystalline
Bifaciality 88 % Rear output as a share of front
Coefficient Pmax -0.240 %/°C Typical median -0.240 of its segment
Coefficient Voc · Isc -0.260 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs

Datasheet charts

Open datasheet PDF

Measured curves published by Luxor Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 635 Wp appear here. The rest cover the whole series.

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.240 %/°C against a segment median of -0.240
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Luxor Solar LX-635M/182R-132+ GG 635 W 23.75% -0.240 33.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Hotter, lighter, +1.4 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +45 W, lighter, +1.4 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +40 W, lighter, +1.2 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Hotter, lighter, +1.2 pp
WST-675BKX72-A2 675 W 25.00% -0.260 32.1 kg +40 W, hotter, +1.2 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +35 W, lighter, +1.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +35 W, lighter, +1.1 pp
LX-625M/182R-132+ GG 625 W 23.38% -0.240 33.5 kg -10 W, -0.4 pp
LX-630M/182R-132+ GG 630 W 23.56% -0.240 33.5 kg Very close match
LX-640M/182R-132+ GG 640 W 23.93% -0.240 33.5 kg Very close match
LX-645M/182R-132+ GG 645 W 24.12% -0.240 33.5 kg +10 W, +0.4 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +65 W, hotter, +1.2 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +60 W, hotter, +1.1 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +35 W, hotter, +1.1 pp

Found 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here

About the ECO LINE N-TYPE HJT GLASS-GLASS BIFACIAL series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What is HJT technology in Luxor ECO LINE panels and how does it differ from PERC or TOPCon cells?
HJT (heterojunction) technology combines amorphous and monocrystalline silicon layers to achieve higher efficiency than typical PERC or TOPCon cells. Luxor ECO LINE N-TYPE HJT panels deliver up to 645 Wp with an exceptionally low temperature coefficient of -0.24%/°C. This translates to lower power losses on hot days, no LID or LeTID degradation (a known issue with PERC cells), and higher yield stability throughout the entire warranty period.
What warranty does the Luxor Solar ECO LINE N-TYPE HJT Glass-Glass Bifacial series come with?
Luxor Solar provides a 30-year product warranty covering material and manufacturing defects, along with a 30-year linear power warranty. This is among the longest warranty periods offered by PV manufacturers and is a direct result of the glass-glass construction and HJT cells, which exhibit an exceptionally low annual degradation rate.
Does the bifacial design of Luxor ECO LINE HJT panels actually increase energy yield on a rooftop?
Yes, though the gain depends on the surface beneath. A bifaciality factor of up to 95% means the rear side generates additional power from light reflected off bright roofing membranes, gravel, or snow. On flat roofs with light-colored coatings or ground-mounted systems, yield gains of 5-15% over monofacial modules are achievable. On dark-colored pitched roofs, the bifacial gain is marginal.
Will Luxor ECO LINE 645 Wp HJT panels perform well in summer when module temperature exceeds 60°C?
Yes, and better than standard modules. The Pmax temperature coefficient of -0.24%/°C means that at a module temperature of 70°C, the panel loses approximately 11% of rated power. A typical PERC module with a -0.35%/°C coefficient would lose about 17% under the same conditions. In practice, this translates to measurably higher energy yield during hot summer days at no additional cost.
Is the glass-glass construction of Luxor ECO LINE HJT panels suitable for harsh environments such as coastal or mountain locations?
Yes. The glass-glass laminate eliminates the backsheet, which is the weakest point of traditional panels in terms of moisture ingress and corrosion. Luxor ECO LINE HJT Glass-Glass modules offer high resistance to salt mist corrosion, strong winds, and snow loads. They are well suited for coastal, mountain, and industrial installations exposed to aggressive chemical environments.
Is Luxor Solar a Tier 1 manufacturer and is this brand a reliable choice for a larger installation?
Luxor Solar is headquartered in Stuttgart, Germany, and has been active in the European market for over 20 years. According to current classifications, the brand does not appear on BloombergNEF Tier 1 lists, which reflects smaller production scale rather than product quality. For larger installations, it is advisable to verify the financial standing of the local distributor and confirm that the product warranty is backed by an insured or well-established service partner.
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