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SunLink Brand review

SL5N108-435

435 Wp TOPCon Bifacial 2500%
ComparePV verdict

Efficiency leader, no clear weak spot

Rank 9,134 of 14,005
Compare panels Datasheet PDF
Power (Wp)
435
Typical for its class
Efficiency (%)
22.30
Strong · top 17%
Density (Wp/m²)
222.8
Strong · top 17%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
22.0
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The SunLink SL5N108 series has been designed to maximize energy yield from the same roof area - these modules utilize N-type cells in the TOPCon technology, which perform better in low-light conditions and exhibit slower degradation over time. In practice, this translates to more stable energy production in Polish conditions, especially during transitional periods when weather can be unpredictable.

A key feature is the bifacial design, which allows for the utilization of reflected light from the ground - this is a significant advantage in situations where every additional kilowatt-hour counts, such as on bright roofs, carports, or ground-mounted installations. The use of SMBB and half-cell configurations minimizes losses and reduces the risk of localized overheating, which contributes to higher reliability. The entire system is completed by an IP68 sealed junction box, which is useful in demanding environmental conditions.

The SL5N108 is a good choice for installers and investors who expect premium technology without compromising on aesthetics (Full Black variants) and durability.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.30% 22.00% Strong · top 17% 5,100
Power density 222.8 220.2 Strong · top 17% 5,150
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 50.6 51.4 Typical 3,963
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 0 caution
Best for

Residential, commercial and shaded-installations.

Strengths
22.30% module efficiency

Top 17% of the TOPCon 400-450 W segment, against a median of 22.00%.

222.8 watts per square metre

Top 17% of the TOPCon 400-450 W segment, against a median of 220.2.

Notes from the database
  • Efficiency of 22.3% matches the TOPCon 400-450W median
  • At 222.8 W/m² power density, roof space requirements are typical for TOPCon 400-450W panels
  • Temperature coefficient of -0.30%/°C matches the TOPCon 400-450W median
  • #5100 for efficiency, #6093 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 435 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.30 % Strong Segment median 22.00%
Vmpp · Impp 32.47 V · 13.40 A Operating point at max power
Voc · Isc 38.61 V · 14.24 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 22.0 kg Typical Typical · median 22.0 kg
Cells 108 · TOPCon Monocrystalline
Bifaciality 2500 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 380 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by SunLink in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 435 Wp appear here. The rest cover the whole series.

Industry Leading Linear Performance Warranty Industry Leading Linear Performance Warranty Whole series Current-Voltage & Power-Voltage Curves (SL5M108) Current-Voltage & Power-Voltage Curves (SL5M108) 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
-0.300 %/°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
SunLink SL5N108-435 435 W 22.30% -0.300 22.0 kg You are here
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +50 W, cooler, +2.0 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.0 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +50 W, cooler, +2.0 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.0 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +50 W, cooler, +2.0 pp
SL5M108-400 400 W 20.50% -0.350 21.5 kg Hotter, -1.8 pp, -5 yr warranty
SL5M108-405 405 W 20.70% -0.350 21.5 kg Hotter, -1.6 pp, -5 yr warranty
SL5M108-410 410 W 21.00% -0.350 21.5 kg Hotter, -1.3 pp, -5 yr warranty
SL5M108-415 415 W 21.30% -0.310 21.5 kg -20 W, hotter, -1.0 pp
SL5N108-420W 420 W 21.50% -0.300 22.0 kg -15 W, -0.8 pp
SL5N108-425W 425 W 21.80% -0.300 22.0 kg -10 W, -0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +75 W, cooler, +2.7 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +60 W, cooler, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +70 W, cooler, +2.4 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +55 W, cooler, +2.2 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +65 W, cooler, +2.2 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the SunLink SL5N108 come with and what does it cover?
The SL5N108 series includes a 15-year product warranty covering material and manufacturing defects, plus a 30-year linear power output warranty. The power warranty guarantees that the module will maintain a defined efficiency level for three decades, which is standard for premium TOPCon modules. When purchasing, make sure the distributor confirms these terms in writing and can honor them locally.
What is TOPCon technology and how do SunLink SL5N108 panels differ from older PERC modules?
TOPCon is an N-type cell technology that delivers higher efficiency and slower degradation compared to conventional P-type PERC. In practice, SL5N108 modules perform better under diffuse light and at elevated temperatures, with a lower annual power degradation rate than PERC. This translates into a higher lifetime energy yield, which is especially relevant in the variable climate of Central Europe.
Do the bifacial SunLink SL5N108 panels make sense on a pitched roof in Poland?
On a typical pitched roof with dark tiles, the rear-side bifacial gain is marginal due to low albedo. The bifacial advantage of the SL5N108 is most significant in ground-mounted systems, carports, and flat roofs with light-colored membranes or gravel. The modules are perfectly suitable for pitched roof mounting, but the bifacial effect should be considered a bonus rather than the primary reason to choose this series for that application.
What is the maximum power output of the SunLink SL5N108 and what kind of installations is it designed for?
The SL5N108 has a maximum power output of 435 Wp. This output is typical for 108 half-cut cell formats and suits both residential prosumer installations and mid-scale commercial projects. The SMBB design combined with half-cut cell layout minimizes mismatch losses under partial shading and reduces the risk of hot spots, improving overall string reliability.
Are the SunLink SL5N108 panels suitable for carport or ground-mounted installations?
Yes, the SL5N108 is an excellent choice for carports and ground-mounted systems. The bifacial design captures reflected light from the ground surface, boosting total energy yield compared to monofacial modules. The IP68-rated junction box provides moisture resistance critical for near-ground exposure. Full Black variants are also available, offering a clean aesthetic for visible installations such as covered parking structures.
Is SunLink a Tier 1 manufacturer and is it worth investing in their panels?
SunLink does not currently appear on BloombergNEF Tier 1 lists, which indicates a limited track record in bankable project financing. This does not necessarily reflect poor product quality, but it does mean you should pay close attention to local distributor stability and warranty service availability. Before purchasing, verify who handles warranty claims in your region so that the 15-year product warranty and 30-year power warranty are realistically enforceable.
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