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Rarlon PV Tech Brand review

RL345HP-144

345 Wp PERC
ComparePV verdict

Middle of its segment, weak in heat

Rank 13,819 of 14,005
Compare panels Datasheet PDF
Power (Wp)
345
Strong · top 4%
Efficiency (%)
17.10
Weak · bottom 19%
Density (Wp/m²)
171.5
Weak · bottom 20%
Temp (%/°C)
-0.390
Weak · bottom 15%
Weight (kg)
22.5
Typical · median 19.0 kg
Warranty (yrs)
-
Not published

The Rarlon PV Tech RL340HP-360HP-144 series consists of modules based on a 144 polycrystalline cell array, designed for stable operation in real-world conditions, including those where the installation is exposed to temperature fluctuations and the typical Polish periods of reduced sunlight. The design utilizes tempered glass and an anodized aluminum frame, which helps to minimize the risk of mechanical damage during transport and installation, and also facilitates long-term operation on rooftops or on the ground. A key advantage of this series is its positive power tolerance, which makes it easier to maintain the predictable performance of the entire string. The modules are designed for high-voltage systems, which will be appreciated by designers of larger systems and installers focused on optimizing wiring and minimizing losses. This is a sensible choice for single-family homes, small businesses, and commercial installations, where durability, consistent performance, and reliable operation over many years are important.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 17.10% 19.00% Weak · bottom 19% 13,430
Power density 171.5 190.0 Weak · bottom 20% 13,417
Temperature coefficient -0.390 -0.360 Weak · bottom 15% 13,579
Weight per kWp 65.2 60.0 Typical 13,052
Performance warranty - 25 yrs Not published 13,880
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 5 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Watch-outs
-0.390 %/°C temperature coefficient

Bottom 15% of the PERC 300-350 W segment, against a median of -0.360.

17.10% module efficiency

Bottom 19% of the PERC 300-350 W segment, against a median of 19.00%.

171.5 watts per square metre

Bottom 20% of the PERC 300-350 W segment, against a median of 190.0.

What owners get
Positive power tolerance

Modules feature a positive power tolerance, reducing the risk of underrated string output and making inverter sizing and yield forecasting more predictable for system designers.

Robust mechanical build

Tempered front glass and an anodized aluminum frame increase resistance to damage during transport, installation, and long-term exposure on roof or ground-mount systems, which matters for field crews handling frequent installs.

High system voltage compatibility

The panels support high system voltage operation, allowing longer strings and fewer inverters/thicker DC cabling runs to be avoided in larger commercial installations.

Mature, proven series since 2019

The RL340HP-360HP-144 series has been on the market since 2019 and remains in active production, giving it a multi-year field track record and available service documentation from the manufacturer (Ningbo Rarlon Photovoltaic Technology).

Standard export-grade certification

The panels hold TUV, CE, and ISO9001 certifications, meeting standard formal requirements for subsidized installations and allowing legal use in EU residential prosumer systems.

Trade-offs
Efficiency below segment median

Efficiency of 16.9-17.9% is noticeably lower than comparable 360 Wp modules: Corab Encor EC360M-6-120FB (19.27%), Bisol Spectrum (18%), and Just Solar IBC Mono (21.3%). At the same rated power, the Rarlon module requires a larger roof footprint.

No confirmed BNEF Tier-1 status

Rarlon PV Tech (Ningbo Rarlon Photovoltaic Technology) does not appear on publicly confirmed BNEF Tier-1 lists, unlike better-established brands such as Bisol. This may require extra due diligence from institutional buyers or bank-financed projects.

Notes from the database
  • At 17.1% efficiency, this panel is 2.3pp below the PERC 0-400W median of 19.4%
  • At 171.5 W/m², this panel generates 22.9 W/m² less per unit area than PERC 0-400W median (194.4 W/m²)
  • -0.39%/°C temperature coefficient - 0.03pp worse than PERC 0-400W median (-0.36%/°C), expect higher hot weather losses
  • Weight of 22.5 kg is 2.0 kg above PERC 0-400W median (20.5 kg) - verify structural support
  • Ranked #13430 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 345 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 17.10 % Weak Segment median 19.00%
Vmpp · Impp 38.84 V · 8.88 A Operating point at max power
Voc · Isc 46.88 V · 9.49 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2008×1002×35 mm · 2.01 m² of roof
Weight 22.5 kg Typical Typical · median 19.0 kg
Cells 144 · PERC Polycrystalline
Coefficient Pmax -0.390 %/°C Weak bottom 15% of its segment
Coefficient Voc · Isc -0.290 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient

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
-0.390 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Rarlon PV Tech RL345HP-144 345 W 17.10% -0.390 22.5 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg Cooler, lighter, +3.0 pp
CS3K-330P 330 W 19.90% -0.360 18.5 kg Cooler, lighter, +2.8 pp
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg -10 W, cooler, +2.8 pp
CS3U-395P 395 W 19.90% -0.360 22.5 kg +50 W, cooler, +2.8 pp
LNSK-335M 335 W 19.78% -0.360 21.0 kg Cooler, lighter, +2.7 pp
CS3L-365P 365 W 19.70% -0.360 21.1 kg +20 W, cooler, +2.6 pp
CS3U-390P 390 W 19.70% -0.360 22.5 kg +45 W, cooler, +2.6 pp
RL340HP-144 340 W 16.90% -0.390 22.5 kg -0.2 pp
RL350HP-144 350 W 17.40% -0.390 22.5 kg +0.3 pp
RL355HP-144 355 W 17.60% -0.390 22.5 kg +10 W, +0.5 pp
RL360HP-144 360 W 17.90% -0.390 22.5 kg +15 W, +0.8 pp
RL400HM-144 400 W 20.00% -0.390 22.5 kg +55 W, +2.9 pp
RL405HM-144 405 W 20.20% -0.390 22.5 kg +60 W, +3.1 pp
RL410HM-144 410 W 20.40% -0.390 22.5 kg +65 W, +3.3 pp
RL415HM-144 415 W 20.60% -0.390 22.5 kg +70 W, +3.5 pp
RL420HM-144 420 W 20.90% -0.390 22.5 kg +75 W, +3.8 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +130 W, cooler, +6.9 pp

Found 135 panels of the same or similar size to this one, within ±10 mm. See them here Found 206 panels of the same or similar size to this one, within ±25 mm. See them here Found 318 panels of the same or similar size to this one, within ±50 mm. See them here Found 791 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is PERC technology in the Rarlon RL340HP-360HP-144 panels, and how does it differ from standard polycrystalline cells?
PERC (Passivated Emitter and Rear Cell) technology adds a passivation layer on the rear surface of the cell, reflecting unabsorbed photons back into the silicon material. In practice, this results in higher conversion efficiency compared to standard polycrystalline cells and better energy harvest at low irradiance angles — an advantage in climates with frequent overcast conditions and low sun elevation during winter months.
Do the Rarlon RL340HP-360HP-144 panels perform well in low-irradiance and cold-climate conditions?
Yes. The RL340HP-360HP-144 series was designed for stable operation under temperature fluctuations and reduced solar irradiance typical of northern European climates. The 144-cell PERC polycrystalline layout maintains solid output under diffuse light conditions. Tempered glass and an anodized aluminum frame provide mechanical resistance to snow loads and frost, supporting long-term rooftop and ground-mount operation without major structural issues.
What does positive power tolerance mean for the Rarlon RL340HP-360HP-144 series, and why does it matter?
Positive power tolerance guarantees that every module delivers at least its rated peak power of up to 360 Wp, never less. When stringing multiple panels together, this ensures predictable string-level output — eliminating the risk of a single underperforming module reducing overall system yield. This is especially relevant in systems without per-module power optimizers, where string-level mismatch directly impacts MPPT efficiency.
What warranty does Rarlon PV Tech offer on the RL340HP-360HP-144 panels?
For this class of modules, Rarlon PV Tech typically provides a product warranty covering material and manufacturing defects (usually 10–12 years) and a 25-year linear power output performance warranty. Always request the current warranty certificate from your distributor, as specific terms may vary by market and production date.
What does high system voltage compatibility mean for the Rarlon RL340HP-360HP-144 series, and why is it relevant for system design?
The RL340HP-360HP-144 modules support system voltages up to 1000 V or 1500 V, allowing more panels to be connected in a single string. For system designers, this means fewer cable runs, lower balance-of-system (BoS) losses, and more efficient MPPT operation on the inverter side. This is a meaningful advantage in larger commercial installations and prosumer systems above 10 kWp, where wiring optimization directly impacts LCOE.
Can the Rarlon RL340HP-360HP-144 panels be installed on both pitched roofs and ground-mount systems?
Yes. The RL340HP-360HP-144 series is compatible with standard mounting systems for pitched roofs (standing seam, trapezoidal sheet, ceramic tile) as well as ground-mount structures. The anodized aluminum frame includes mounting holes compatible with common rails and mid/end clamps. Before installation, verify that the selected racking system meets the manufacturer's load and tilt angle specifications.
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