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Luxen Solar Energy LNDB-505ND
Luxen Solar Energy Brand review

LNDB-505ND

505 Wp N-type Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 5,158 of 14,005
Compare panels Datasheet PDF
Power (Wp)
505
Weak · bottom 21%
Efficiency (%)
22.71
Typical · median 22.54%
Density (Wp/m²)
227.1
Typical · median 225.3
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
27.8
Weak · 1.6 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The LUXNERI N5 series from Luxen Solar Energy is engineered to maximize energy yield even under challenging irradiance conditions. At the heart of the series is N-TOPCon technology paired with proprietary LECO optimization, which enhances cell performance under low or diffuse light, keeping the panels productive on cloudy days and during early morning or evening hours. The use of half-cut cells with SMBB (multi-busbar) technology reduces resistive losses and improves the module's mechanical resistance to microcracks, translating into a longer installation lifespan. The dual-sided, bifacial design captures light reflected from the ground, boosting overall energy production without requiring extra roof space. The panels also stand out with a low LID degradation rate and high resistance to PID and hot-spot effects, making them a reliable choice for long-term operation. The sleek, elegant Full Black version makes the N5 series a great fit for residential rooftops and plug-in micro-installations, where both performance and appearance matter. It's a solution for investors seeking a balance between aesthetics, durability, and real-world energy production under the variable weather conditions typical of Poland.

Ranking

140 panels in the segment N-type 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.71% 22.54% Typical 3,285
Power density 227.1 225.3 Typical 3,312
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 55.0 50.0 Weak · bottom 11% 9,433
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 3 caution
Best for

Residential and shaded-installations.

Not ideal for

Weight-limited structures.

Watch-outs
55.0 kg per kWp

Bottom 11% of the N-type 500-550 W segment, against a median of 50.0.

What owners get
N-TOPCon technology with LECO

The combination of N-type TOPCon cells with the proprietary LECO (Low Efficiency Cell Optimization) solution improves module performance under weak and diffuse light, resulting in higher yield on cloudy days and during morning/evening hours compared to older PERC technology.

Efficiency up to 22.93%, top of segment

Maximum efficiency of 22.93% places the N5 series above REC Alpha Pro M (22.5%) and on par with Jetion JT SRt(B) (22.9%), at the same maximum power of 640 Wp.

30-year linear power warranty

The manufacturer guarantees 30 years on power output with a 20-year product warranty - longer than the standard 25 years offered by many tier-1 manufacturers, reducing investment risk over the installation's lifecycle.

BNEF Tier-1 status since 2022

Luxen Solar Energy has continuously maintained Tier-1 status according to BloombergNEF since 2022, which facilitates bank and leasing financing for installations based on this series.

Half-cut SMBB cells and glass-glass build

The use of half-cut cells with multi-busbar (SMBB) technology reduces resistive losses and increases resistance to micro-cracks, while the glass-glass construction provides high PID resistance and a low LID degradation rate.

Trade-offs
Monofacial variant, no bifacial gain

Although marketing materials reference a bifacial construction, the specification for this N5 series configuration indicates a monofacial module. Two of the three peer comparables - REC Alpha Pro M and Jinko EAGLE G7B - offer bifacial variants with additional energy yield from reflected light, making them more attractive for ground-mount and commercial installations.

Efficiency trails segment leader

Maximum efficiency of 22.93% falls short of the flagship Jinko Solar EAGLE G7B (23.69%) by about 0.76 pp, meaning a slightly lower installed power for the same roof area.

Notes from the database
  • Efficiency of 22.7% matches the N-type 500-550W median
  • At 227.1 W/m² power density, roof space requirements are typical for N-type 500-550W panels
  • At -0.29%/°C, hot weather performance is typical for N-type 500-550W panels
  • Weight of 27.8 kg is 1.6 kg above N-type 500-550W median (26.2 kg) - verify structural support
  • Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 505 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.71 % Typical Segment median 22.54%
Vmpp · Impp 33.71 V · 14.98 A Operating point at max power
Voc · Isc 40.22 V · 15.90 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1961×1134×33 mm · 2.22 m² of roof
Weight 27.8 kg Weak Weak · 1.6 kg above median
Cells 108 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 20 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 441 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Luxen Solar Energy in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 505 Wp appear here. The rest cover the whole series.

I-V Curve at 1000 W/m² and 800 W/m² (Cell Temp = 25°C) I-V Curve at 1000 W/m² and 800 W/m² (Cell Temp = 25°C) 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
-0.290 %/°C against a segment median of -0.290
-
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
Luxen Solar Energy LNDB-505ND 505 W 22.71% -0.290 27.8 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +2.3 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +2.1 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +2.0 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +50 W, cooler, +1.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +1.8 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +1.8 pp
LNDB-490ND 490 W 22.03% -0.290 27.8 kg -15 W, -0.7 pp
LNDB-495ND 495 W 22.26% -0.290 27.8 kg -10 W, -0.4 pp
LNDB-500N 500 W 22.48% -0.290 23.5 kg Lighter, -0.2 pp
LNDB-510N 510 W 22.93% -0.290 23.5 kg Lighter, +0.2 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +55 W, cooler, +2.1 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +45 W, lighter, +1.7 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +35 W, lighter, +1.7 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +35 W, lighter, +1.7 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +40 W, cooler, +1.6 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg +40 W, cooler, +1.5 pp

Found 471 panels of the same or similar size to this one, within ±10 mm. See them here Found 508 panels of the same or similar size to this one, within ±25 mm. See them here Found 662 panels of the same or similar size to this one, within ±50 mm. See them here Found 1471 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is N-TOPCon and LECO technology in LUXNERI N5 panels?
N-TOPCon is an advanced N-type cell technology that reduces energy losses and delivers higher efficiency than conventional P-type cells. The patented LECO solution further optimizes cell performance under low or diffuse light, so LUXNERI N5 panels generate more energy on cloudy days and during early morning and late afternoon hours when irradiance is lower.
What warranty comes with LUXNERI Series N5 panels?
Luxen Solar Energy provides a 20-year product warranty and a 30-year power output warranty. This means the panel maintains a guaranteed performance level for three decades, while manufacturing or material defects are covered for 20 years, giving investors long-term security for their installation.
What is the maximum power output of the LUXNERI N5 panel and who is it suited for?
Panels in the LUXNERI N5 series reach up to 640 Wp, meaning fewer modules are needed to achieve a given system size. This makes the series suitable both for larger installations on single-family home roofs and for plug-in microinstallations, where high efficiency within limited surface area matters most.
How do half-cut SMBB cells differ from standard solar cells?
Half-cut cells are cut in half, which reduces resistive losses and increases mechanical resistance to microcracks. SMBB, or multi-busbar technology, further improves current collection across the cell surface and lowers the risk of power loss from partial shading, such as from chimneys or antennas on the roof.
Are LUXNERI N5 panels resistant to LID degradation and PID effect?
Yes, the LUXNERI N5 series features a low LID degradation rate, meaning minimal light-induced power loss during the initial operating period, along with high resistance to PID, or potential-induced degradation, and the hot-spot effect. These properties support stable energy production throughout the 30-year power warranty period.
Is the Full Black version of LUXNERI N5 panels a good choice for a single-family home roof?
The Full Black version combines aesthetics with the full technical performance of the N5 series, blending seamlessly with dark roofing typical of residential buildings. It is a strong choice for investors who value a uniform, elegant look visible from street level or neighboring properties, in addition to energy production.
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