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Weran Solar Brand review

LR7-72HTH 620M

620 Wp Monocrystalline
ComparePV verdict

Light for its output, short guarantee

Rank 3,436 of 14,005
Compare panels Datasheet PDF
Power (Wp)
620
Typical for its class
Efficiency (%)
23.00
Strong · top 19%
Density (Wp/m²)
229.5
Strong · top 21%
Temp (%/°C)
-0.280
Strong · top 14%
Weight (kg)
28.5
Strong · 3.5 kg below median
Warranty (yrs)
25
Weak · bottom 10%

The Weran Solar LR7-72HTH 595~620M series is designed for installations where maximizing energy yield per square meter and predictable performance over many years are crucial. Its foundation is the HPBC (back contact) cell technology, which means the front side of the module does not have traditional busbars - this allows for better light utilization and aesthetics, which are highly valued in premium projects. In practice, this translates to stable energy production even in less sunny conditions and under variable weather conditions typical of Poland. The fully sealed rear construction improves resistance to microcracks, which makes logistics and installation easier, especially for large modules. An additional advantage is the positive power tolerance, which reduces the risk of underestimating energy yields in a project. This makes it a good choice for installers and investors building solar farms and commercial installations who are looking for lower BOS (balance of system) and transportation costs without compromising on quality.

Ranking

6,086 panels in the 520-720 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 23.00% 22.30% Strong · top 19% 1,919
Power density 229.5 222.6 Strong · top 21% 2,191
Temperature coefficient -0.280 -0.300 Strong · top 14% 1,309
Weight per kWp 46.0 53.1 Strong · top 6% 939
Performance warranty 25 yrs 30 yrs Weak · bottom 10% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 1 caution
Best for

Commercial, utility-scale, shaded-installations and hot-climate.

Not ideal for

Owners who want a long output guarantee.

Strengths
46.0 kg per kWp

Top 6% of the 520-720 W band, against a median of 53.1. Ranked 939th in the whole database.

-0.280 %/°C temperature coefficient

Top 14% of the 520-720 W band, against a median of -0.300.

23.00% module efficiency

Top 19% of the 520-720 W band, against a median of 22.30%.

Watch-outs
25 year performance warranty

Bottom 10% of the 520-720 W band, against a median of 30 yrs.

Notes from the database
  • Efficiency of 23.0% is 1.2pp above the database median (21.8%)
  • 229.5 W/m² power density - 11.4 W/m² more than database median (218.1 W/m²), more power per roof area
  • At -0.28%/°C, hot weather performance is typical for database panels
  • Weight of 28.5 kg is 2.0 kg above database median (26.5 kg) - verify structural support
  • In the top 14% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 620 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.00 % Strong Segment median 22.30%
Vmpp · Impp 44.48 V · 13.94 A Operating point at max power
Voc · Isc 52.72 V · 14.93 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 28.5 kg Strong Strong · 3.5 kg below median
Cells 144 Monocrystalline
Coefficient Pmax -0.280 %/°C Strong top 14% of its segment
Coefficient Voc · Isc -0.230 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 10% · median 30 yrs
End-of-warranty output 89.4 % Equals 542 W guaranteed
Degradation 1.00 → 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 620 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
-0.280 %/°C against a segment median of -0.300
-

Alternatives

All Weran Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Weran Solar LR7-72HTH 620M 620 W 23.00% -0.280 28.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +30 W, +2.2 pp, +5 yr warranty
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +25 W, +2.0 pp, +5 yr warranty
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +50 W, +1.8 pp, +5 yr warranty
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +50 W, +1.8 pp, +5 yr warranty
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, +1.8 pp, +5 yr warranty
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +50 W, +1.8 pp, +5 yr warranty
LR7-72HTH 595M 595 W 22.00% -0.280 28.5 kg -25 W, -1.0 pp
LR7-72HTH 600M 600 W 22.20% -0.280 28.5 kg -20 W, -0.8 pp
LR7-72HTH 605M 605 W 22.40% -0.280 28.5 kg -15 W, -0.6 pp
LR7-72HTH 610M 610 W 22.60% -0.280 28.5 kg -10 W, -0.4 pp
LR7-72HTH 615M 615 W 22.80% -0.280 28.5 kg Very close match
WR7-72HVD-640M 640 W 23.70% -0.260 33.5 kg Heavier, +0.7 pp, +5 yr warranty
WR7-72HVD-645M 645 W 23.90% -0.260 33.5 kg Heavier, +0.9 pp, +5 yr warranty
WR7-72HVD-650M 650 W 24.10% -0.260 33.5 kg Heavier, +1.1 pp, +5 yr warranty
WR7-72HVD-655M 655 W 24.20% -0.260 33.5 kg Heavier, +1.2 pp, +5 yr warranty
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +60 W, +2.2 pp, +5 yr warranty

Found 1119 panels of the same or similar size to this one, within ±10 mm. See them here Found 1125 panels of the same or similar size to this one, within ±25 mm. See them here Found 1236 panels of the same or similar size to this one, within ±50 mm. See them here Found 1917 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 LR7-72HTH 595~620M panels and how does it differ from conventional busbar cells?
HPBC (Heterojunction Passivated Back Contact) places all cell electrodes on the rear side of the cell. The front surface of the module has no visible busbars, so more sunlight reaches the silicon directly. This results in higher efficiency (up to 23.0%) and a uniform, aesthetic appearance valued in premium installations and street-facing projects.
What warranty comes with the Weran Solar LR7-72HTH 595~620M panels?
The manufacturer provides a 12-year product warranty and a 25-year linear power warranty. First-year degradation is under 1%, and annual degradation afterward does not exceed 0.40%, meaning the panel should retain over 87% of its initial power output after 25 years of operation.
Are the Weran Solar LR7-72HTH 595~620M panels still available for purchase?
No, this series has been discontinued and is no longer in active production, so it is not available as a new order from the manufacturer. Units may still be found in distributor stock. Buyers planning new installations should ask about current equivalent models from Weran Solar or LONGi, the manufacturer this series was distributed from.
Do the LR7-72HTH 595~620M panels perform well in low temperatures and variable sunlight?
Yes. The power temperature coefficient is -0.28%/°C, meaning the output drop at higher temperatures is smaller than in typical busbar-cell panels. The absence of front-side busbars also improves capture of diffuse light, allowing the panels to perform more consistently under overcast skies and low sun angles, both common in Polish winters.
What type of installation is the Weran Solar LR7-72HTH 595~620M panel best suited for - rooftop or utility-scale farms?
Given its large size (2382x1134x30 mm) and weight of 28.5 kg, this panel is primarily aimed at commercial installations and utility-scale solar farms, where maximizing yield per unit of roof or ground area matters most. The high per-module power output (up to 620 Wp) reduces the number of panels, mounting structures, and cabling needed, lowering BoS and transport costs in large projects.
How does the LR7-72HTH 595~620M differ from the bifacial version in the Weran Solar lineup?
This series is monofacial, generating power only from the front side of the module. Bifacial variants in the HPBC/HJD family also capture light reflected off the ground, potentially boosting energy yield by several percent, but they require suitable mounting conditions (e.g., a reflective surface or ground-mounted racking) and typically cost more. A monofacial module is the right choice where site conditions can't take advantage of the albedo effect.
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