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Weran Solar Brand review

WR5-54HTH-420M

420 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 10,787 of 14,005
Compare panels Datasheet PDF
Power (Wp)
420
Typical for its class
Efficiency (%)
21.50
Typical · median 21.50%
Density (Wp/m²)
215.1
Typical · median 215.0
Temp (%/°C)
-0.290
Typical · median -0.300
Weight (kg)
20.8
Typical · median 23.0 kg
Warranty (yrs)
25
Weak · bottom 18%

The Weran Solar WR5-54HTH (420~440M) series are compact modules designed for rooftop installations, where every square meter and a cohesive building appearance are crucial. The use of HPBC technology allows for efficient operation even under less-than-ideal conditions on the roof, such as partial shading or complex roof geometries. The refined aesthetics - black design and low profile - ensure that the panels blend seamlessly with modern homes, without appearing like a "technical afterthought."

The WR5-54HTH also emphasizes safety and durability: a robust construction with an IP68 enclosure and certifications (including TUV and CE) make it easy to select modules for projects requiring documented quality. It is a good choice for homeowners, twin houses, and small service buildings who want to combine high efficiency with aesthetics and long-term predictability, thanks to long warranty and reliable after-sales support.

Ranking

6,930 panels in the 320-520 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 21.50% 21.50% Typical 7,958
Power density 215.1 215.0 Typical 7,882
Temperature coefficient -0.290 -0.300 Typical 2,165
Weight per kWp 49.5 53.0 Typical 3,056
Performance warranty 25 yrs 30 yrs Weak · bottom 18% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 18% of the 320-520 W band, against a median of 30 yrs.

Notes from the database
  • At 21.5% efficiency, this panel is on par with typical database modules
  • At 215.1 W/m², this panel generates 3.0 W/m² less per unit area than database median (218.1 W/m²)
  • Temperature coefficient of -0.29%/°C matches the database median
  • Weight of 20.8 kg (5.7 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • In the top 57% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 420 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.50 % Typical Segment median 21.50%
Vmpp · Impp 34.24 V · 12.26 A Operating point at max power
Voc · Isc 40.70 V · 12.96 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 20.8 kg Typical Typical · median 23.0 kg
Cells 108 Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.300 of its segment
Coefficient Voc · Isc -0.250 · 0.043 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 18% · median 30 yrs
End-of-warranty output 88.9 % Equals 365 W guaranteed
Degradation 1.50 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Weran Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 420 Wp appear here. The rest cover the whole series.

25-Year Power Warranty 25-Year Power Warranty 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
-0.290 %/°C against a segment median of -0.300
-

Alternatives

All Weran Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Weran Solar WR5-54HTH-420M 420 W 21.50% -0.290 20.8 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +45 W, +2.3 pp, +5 yr warranty
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +45 W, +2.3 pp, +5 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +50 W, +2.2 pp, +15 yr warranty
AIKO-A470-MAH54Mb 470 W 23.60% -0.260 21.5 kg +50 W, +2.1 pp, +5 yr warranty
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg +40 W, +2.1 pp, +5 yr warranty
HSM-BD54-LA470 470 W 23.60% -0.260 21.5 kg +50 W, +2.1 pp, +5 yr warranty
WR5-54HTH-425M 425 W 21.80% -0.290 20.8 kg +0.3 pp
WR5-54HTH-430M 430 W 22.00% -0.290 20.8 kg +10 W, +0.5 pp
WR5-54HTH-435M 435 W 22.30% -0.290 20.8 kg +15 W, +0.8 pp
WR5-54HTH-440M 440 W 22.50% -0.290 20.8 kg +20 W, +1.0 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +90 W, +3.5 pp, +5 yr warranty
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +75 W, +3.3 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +85 W, +3.2 pp, +5 yr warranty
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +70 W, +3.0 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +80 W, +3.0 pp, +5 yr warranty
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +80 W, +3.0 pp, +5 yr warranty

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 is HPBC technology in the Weran Solar WR5-54HTH panels and is it worth choosing?
HPBC (Hybrid Passivated Back Contact) is a back-contact cell technology where all electrical contacts are moved to the rear side of the module. As a result, the front surface of the WR5-54HTH panel has no visible busbars or grid lines, improving aesthetics and allowing more effective use of the cell surface. In practice this means higher conversion efficiency and better performance under partial shading compared to conventional PERC panels.
Are WR5-54HTH panels suitable for roofs with complex geometry or partial shading?
Yes, this is one of the main use cases for this series. The compact module dimensions (1722x1134 mm) make it easier to fit on irregular roof planes, and HPBC technology handles partial shading from chimneys, dormers, or antennas better than older cell technologies. The manufacturer highlights that the WR5-54HTH series is designed for roofs where occasional shading on part of the array is unavoidable.
What warranty comes with the Weran Solar WR5-54HTH panels?
The panels come with a 15-year product warranty covering material and workmanship defects, plus a 25-year power output warranty guaranteeing a minimum generation level over that period (typically around 88-89% of initial power after 25 years). This is a standard, predictable coverage period that helps with planning the return on investment for a solar installation.
Do WR5-54HTH modules perform well in cold winter temperatures?
Yes. The panels have a favorable power temperature coefficient of around -0.29%/°C, meaning a relatively small power drop at high temperatures and good efficiency in cooler conditions, typical of Polish winters. It's worth noting that lower temperatures combined with strong sunlight, such as in early spring, can even momentarily boost output compared to hot summer days.
Do WR5-54HTH panels look good on a modern single-family house?
Yes, the series was designed with aesthetics in mind - a black frame, black backsheet, and no visible metallic grid lines on the front (a result of HPBC technology) allow the panels to blend seamlessly with dark roofs and facades without a bulky, technical appearance. This makes it a popular choice for owners who want a uniform, consistent look across the roof surface.
Is the junction box on the WR5-54HTH panels resistant to moisture and rain?
Yes, the modules feature an IP68-rated junction box, the highest protection class commonly used in photovoltaics. This means full protection against dust and resistance to prolonged submersion in water, which matters for installations exposed to heavy rainfall, snow, or moisture. The panels also carry TUV and CE certifications, confirming compliance with safety standards applicable in Europe.
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