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Luxor Solar Brand review

LX-550M/182-144+

550 Wp Monocrystalline
ComparePV verdict

Middle of its segment, weak in heat

Rank 7,157 of 14,129
Compare panels Datasheet PDF
Power (Wp)
550
Typical for its class
Efficiency (%)
21.53
Typical · median 22.32%
Density (Wp/m²)
212.8
Weak · bottom 24%
Temp (%/°C)
-0.360
Weak · bottom 3%
Weight (kg)
29.0
Typical · median 28.5 kg
Warranty (yrs)
25
Weak · bottom 10%

The Luxor Solar Eco Line Half Cell M144 series is an advanced solution based on a 144 half-cut cell design, which significantly reduces energy losses resulting from internal resistance. Thanks to the use of Half-Cell technology, these panels exhibit exceptional resistance to partial shading, allowing for stable system operation even in challenging mounting conditions. The module design promotes lower cell operating temperatures, directly translating to a longer lifespan and reduced material degradation over time. The use of monocrystalline silicon technology combined with precise quality control guarantees high efficiency, setting these modules apart from standard market solutions. The M144 series panels are an ideal choice for large-scale commercial installations and solar farms, where maximizing space utilization and achieving a quick return on investment are crucial. Their uniqueness lies in the perfect balance between robust construction and optimized current flow, which minimizes the risk of hot-spots. By choosing the Eco Line M144 series, investors gain performance reliability based on German engineering standards, making these modules one of the most dependable products in the high-power solution segment.

Ranking

7,530 panels in the 450-650 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 21.53% 22.32% Typical 7,914
Power density 212.8 223.2 Weak · bottom 24% 8,709
Temperature coefficient -0.360 -0.292 Weak · bottom 3% 12,425
Weight per kWp 52.7 52.7 Typical 6,427
Performance warranty 25 yrs 30 yrs Weak · bottom 10% 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 6 caution
Best for

Commercial, utility-scale and shaded-installations.

Not ideal for

Hot climates, owners who want a long output guarantee and roofs where every square metre has to count.

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 3% of the 450-650 W band, against a median of -0.292. Ranked 12,425th in the whole database.

25 year performance warranty

Bottom 10% of the 450-650 W band, against a median of 30 yrs.

212.8 watts per square metre

Bottom 24% of the 450-650 W band, against a median of 223.2.

What owners get
Higher efficiency than peers

Peak efficiency of 21.92% exceeds comparable 144-cell modules of similar power class: Exiom EX560M(B) (21.7%), Fellow Energy FE72-18X (21.7%), and Premier Energies 144 HC (21.67%). This is a real advantage where installation area is limited.

Half-cell N-type technology

Splitting cells in half reduces resistive losses and lowers module operating temperature, resulting in a Pmax temperature coefficient of -0.4%/°C and improved partial-shading tolerance without significant energy yield loss.

Nearly two decades of manufacturing experience

Luxor Solar GmbH, headquartered in Stuttgart, has been operating since 2007 - close to 19 years in the PV module segment - applying German quality control standards to production.

PID-free certification

Cells are 100% resistant to potential-induced degradation (PID), which matters in large-scale commercial installations and solar farms where PID risk increases with the number of modules connected in series within a string.

Trade-offs
Discontinued production

The Eco Line Half Cell M144 series (launched in 2019) has been discontinued, meaning limited availability of warranty service, spare units, and difficulty replacing individual failed modules within an existing array.

Manufacturer not on BNEF Tier-1 list

Luxor Solar is not classified as a Tier-1 bankable manufacturer under the BloombergNEF ranking, which can complicate financing for commercial projects with banks and institutional investors that favor Tier-1 suppliers.

Power warranty below current N-type standard

The 25-year linear warranty guaranteeing 85% power output at year 25 trails current N-type/TOPCon offerings (e.g., 30 years and ~87.4% power), placing this series behind the segment leaders in 2026 in terms of long-term warranted performance.

Notes from the database
  • At 21.5% efficiency, this panel is on par with typical database modules
  • At 212.8 W/m², this panel generates 5.3 W/m² less per unit area than database median (218.1 W/m²)
  • -0.36%/°C temperature coefficient - 0.06pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • Weight of 29.0 kg is 2.5 kg above database median (26.5 kg) - verify structural support
  • Ranked #7914 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 550 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.53 % Typical Segment median 22.32%
Vmpp · Impp 41.39 V · 13.29 A Operating point at max power
Voc · Isc 49.63 V · 14.03 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2279×1134×35 mm · 2.58 m² of roof
Weight 29.0 kg Typical Typical · median 28.5 kg
Cells 144 Monocrystalline
Coefficient Pmax -0.360 %/°C Weak bottom 3% of its segment
Coefficient Voc · Isc -0.285 · 0.049 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 10% · median 30 yrs
End-of-warranty output 85.5 % Equals 457 W guaranteed
Degradation 2.50 → 0.50 % First year, then annual

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 550 Wp appear here. The rest cover the whole series.

25-Year Linear Performance Guarantee (The Luxor Guarantee Plus) 25-Year Linear Performance Guarantee (The Luxor Guarantee Plus) Whole series UI-diagram e.g. LX-540M/182-144+ UI-diagram e.g. LX-540M/182-144+ Whole series UP-diagram e.g. LX-540M/182-144+ UP-diagram e.g. LX-540M/182-144+ 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
-

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

Heat losses
-0.360 %/°C against a segment median of -0.292
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Luxor Solar LX-550M/182-144+ 550 W 21.53% -0.360 29.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.5 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, +3.3 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.2 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg Cooler, +3.2 pp, +5 yr warranty
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, +3.1 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +3.0 pp
LX-540M/182-144+ 540 W 21.15% -0.360 29.0 kg -10 W, -0.4 pp
LX-545M/182-144+ 545 W 21.34% -0.360 29.0 kg Very close match
LX-555M/182-144+ GG BiF 555 W 21.74% -0.300 32.7 kg Cooler, heavier, +5 yr warranty
LX-560M/182-144+ GG BiF 560 W 21.93% -0.300 32.7 kg Cooler, heavier, +5 yr warranty
LX-565 M/182-144+ 565 W 22.12% -0.300 29.0 kg +15 W, cooler, +0.6 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +100 W, cooler, +3.7 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +95 W, cooler, +3.5 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +90 W, cooler, +3.3 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +85 W, cooler, +3.1 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +80 W, cooler, +2.9 pp

Found 2327 panels of the same or similar size to this one, within ±10 mm. See them here Found 2369 panels of the same or similar size to this one, within ±25 mm. See them here Found 2383 panels of the same or similar size to this one, within ±50 mm. See them here Found 2543 panels of the same or similar size to this one, within ±100 mm. See them here

About the Eco Line Half Cell M144 series

6 answered

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

Is the Luxor Solar Eco Line Half Cell M144 series still available for purchase?
The Eco Line Half Cell M144 series has been discontinued and is no longer actively distributed by Luxor Solar. Limited stock may still appear at select distributors as remaining inventory, but availability is restricted and not guaranteed. For new installations, we recommend reviewing Luxor Solar's current lineup for newer series with comparable or improved specifications.
What does N-type cell technology mean in the Luxor Solar Eco Line M144 panels, and how does it compare to PERC?
N-type cells used in the Eco Line M144 series exhibit significantly lower susceptibility to light-induced degradation (LID) compared to standard P-type PERC cells. This results in lower annual power degradation and better efficiency retention throughout the module's lifetime. For commercial projects focused on long-term LCOE optimization, the N-type architecture provides a measurable advantage over conventional PERC modules.
What are the product and power warranties for the Luxor Solar Eco Line Half Cell M144?
Luxor Solar provides a 15-year product warranty covering material and workmanship defects, and a 25-year linear power output warranty for the Eco Line Half Cell M144 series. After 25 years of operation, modules are guaranteed to retain at least 85.5% of their rated power. As a German-headquartered brand established in 2004, Luxor Solar offers reliable backing for warranty claims.
How well do the Luxor Solar Eco Line Half Cell M144 panels handle partial shading?
The half-cut cell architecture with 144 cells significantly improves shade tolerance compared to standard full-cell modules. Each half-cell operates semi-independently, raising the bypass diode activation threshold and reducing power loss when part of the panel is shaded by chimneys, antennas, or adjacent structures. This makes the M144 series a practical choice for installations with complex or obstructed rooftop layouts.
What type of installations are the 560 Wp Luxor Solar Eco Line Half Cell M144 panels best suited for?
With a maximum output of 560 Wp, the Eco Line Half Cell M144 modules are primarily designed for large-scale commercial installations and utility-scale PV farms. High per-module power minimizes BoS costs and maximizes energy yield per square meter, directly accelerating return on investment. The larger module dimensions and weight require a robust racking system and a proper structural load assessment prior to installation.
How do the Luxor Solar Eco Line M144 panels perform in high summer temperatures?
The Eco Line Half Cell M144 series has a nominal operating cell temperature (NMOT) of 45 ± 2°C, a favorable figure compared to older module generations. The half-cut cell design promotes better airflow beneath the module and reduces cell operating temperatures during peak hours, directly limiting thermal losses. With a power temperature coefficient of approximately -0.35%/°C, output losses on hot days remain at an acceptable level.
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