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Rarlon PV Tech Brand review

RL300HM-60

300 Wp Monocrystalline
ComparePV verdict

Middle of its segment, weak in heat

Rank 13,811 of 14,005
Compare panels Datasheet PDF
Power (Wp)
300
Weak · bottom 20%
Efficiency (%)
18.44
Typical · median 19.40%
Density (Wp/m²)
184.4
Typical · median 193.8
Temp (%/°C)
-0.470
Weak · bottom 1%
Weight (kg)
17.0
Typical · median 20.8 kg
Warranty (yrs)
-
Not published

The Rarlon PV Tech Monocrystalline Black series consists of panels designed for installations where both aesthetics and stable energy production are important. They are characterized by a sleek, uniform design that complements modern roofs and facades - without contrasting frames or a "gridded" appearance on the panels.

The monocrystalline cells provide high efficiency in daily operation, and the half-cut design helps minimize losses and improves the module's performance under partial shading, for example, from a chimney, skylight, or balustrade. This is a real advantage for single-family homes in dense residential areas, and for small businesses where it is not always possible to perfectly plan the exposure.

Furthermore, thanks to solutions such as multi-busbar connection (MBB), the series is designed for better current collection and greater resistance to micro-cracks during operation. This is a good choice for investors who want an aesthetically pleasing PV installation without compromising on durability and predictability of energy yields.

Ranking

1,792 panels in the 200-400 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 18.44% 19.40% Typical 13,123
Power density 184.4 193.8 Typical 13,097
Temperature coefficient -0.470 -0.350 Weak · bottom 1% 13,879
Weight per kWp 56.7 59.4 Typical 10,801
Performance warranty - 25 yrs Not published 13,880
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 3 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Hot climates.

Watch-outs
-0.470 %/°C temperature coefficient

Bottom 1% of the 200-400 W band, against a median of -0.350. Ranked 13,879th in the whole database.

What owners get
Above-median efficiency for the segment

Efficiency of 18.44-19.05% exceeds the Selfa SV120M.3.2 (17%) by over 1.4-2 pp and is on par with or above Canadian Solar's BiKu (18.4%) and KuBlack CS3K-MS (18.7%) - a solid position among comparable mono modules in this power class.

Half-cut + MBB reduce power losses

Half-cut cell design combined with multi-busbar (MBB) contacting reduces resistive losses and hot-spot effect, improving module behavior under partial shading and increasing resistance to micro-cracks over the panel's service life.

Uniform all-black aesthetic

Full black finish (frame, backsheet, cells) eliminates the contrasting 'checkerboard' look typical of older modules - a meaningful advantage on visible residential roof surfaces and facades.

Proven, continuous production since 2017

The series has been on the market uninterrupted since 2017 (not discontinued), giving it roughly a 9-year track record and continued after-sales support availability, unlike models already phased out.

Trade-offs
Low power class by current market standards

The 300-310 Wp range corresponds to an older cell format (72-cell half-cut), while current Tier-1 series (including Canadian Solar) already offer 400-450+ Wp in a comparable module footprint - meaning more panels and larger mounting area per kWp installed.

No confirmed BNEF Tier-1 status

Unlike Canadian Solar (an established Tier-1 manufacturer), Rarlon PV Tech is not confirmed on the BNEF Tier-1 list, which can matter when assessing project bankability and financing eligibility with institutions that require Tier-1-classified modules.

Notes from the database
  • Module efficiency of 18.4% is 3.4pp below average for database panels (median: 21.8%)
  • Power density of 184.4 W/m² is 33.7 W/m² below database median (218.1 W/m²) - needs more roof space
  • At -0.47%/°C, loses 0.17pp more power per degree than database median (-0.30%/°C)
  • 17.0 kg weight - 9.5 kg lighter than database median (26.5 kg), reducing installation effort
  • Ranked #13123 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 300 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 18.44 % Typical Segment median 19.40%
Vmpp · Impp 31.89 V · 9.41 A Operating point at max power
Voc · Isc 39.21 V · 9.89 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1640×992×35 mm · 1.63 m² of roof
Weight 17.0 kg Typical Typical · median 20.8 kg
Cells 60 Monocrystalline
Coefficient Pmax -0.470 %/°C Weak bottom 1% of its segment
Coefficient Voc · Isc -0.346 · 0.036 %/°C
NOCT 47 °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
-0.470 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Rarlon PV Tech RL300HM-60 300 W 18.44% -0.470 17.0 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.9 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.9 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg Cooler, lighter, +4.9 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg +30 W, cooler, +4.7 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg +30 W, cooler, +4.7 pp
GKA182M285W 285 W 23.00% - 10.8 kg -15 W, lighter, +4.6 pp
GKA182M260W 260 W 23.00% - 10.8 kg -40 W, lighter, +4.6 pp
GKA182M270W 270 W 23.00% - 10.8 kg -30 W, lighter, +4.6 pp
GKA182M300W 300 W 23.00% - 16.2 kg +4.6 pp
RL250HM-60 250 W 15.37% -0.470 17.0 kg -50 W, -3.1 pp
RL260HP-60 260 W 15.98% -0.470 17.0 kg -40 W, -2.5 pp
RL270HM-60 270 W 16.60% -0.470 17.0 kg -30 W, -1.8 pp
RL280HM-60 280 W 17.21% -0.470 17.0 kg -20 W, -1.2 pp
RL290HM-60 290 W 17.83% -0.470 17.0 kg -10 W, -0.6 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg +100 W, cooler, +4.2 pp
LEPV 400 400 W 22.31% -0.290 20.0 kg +100 W, cooler, +3.9 pp

Found 182 panels of the same or similar size to this one, within ±10 mm. See them here Found 218 panels of the same or similar size to this one, within ±25 mm. See them here Found 379 panels of the same or similar size to this one, within ±50 mm. See them here Found 472 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Do Rarlon PV Tech Monocrystalline Black panels perform well under partial shading, for example from a chimney or dormer?
Yes, the Monocrystalline Black series is a solid choice for rooftops with elements that cause partial shading. The half-cut cell design splits each cell in two, so a shaded section of the module does not fully block the output of the remaining area. This translates into real energy gains when an ideal shade-free installation is not possible — for instance, in dense residential areas or on roofs with chimneys and dormers.
What is the maximum power output of the Rarlon PV Tech Monocrystalline Black panels?
The Rarlon PV Tech Monocrystalline Black series reaches a peak output of up to 310 Wp, measured under Standard Test Conditions (STC). When paired with a properly sized inverter and an optimized mounting angle, an installation based on these modules delivers stable and predictable energy production throughout the year, regardless of the season.
What does MBB technology mean in the Rarlon PV Tech Monocrystalline Black series, and does it matter in day-to-day use?
MBB (multi-busbar) uses a higher number of thinner conductive busbars to collect current from the cell surface. The benefits are twofold: improved current collection efficiency and greater resistance to microcracks that can develop over years of operation. In practice, this means a lower risk of degradation and more stable energy yields after 10 or 20 years of use.
How does the appearance of the Rarlon PV Tech Monocrystalline Black panels differ from standard solar modules?
The Monocrystalline Black series features a fully black aesthetic — black cells, black frame, and black backsheet — creating a uniform, dark panel without the checkerboard pattern visible on standard white-backsheet modules. This design integrates seamlessly with modern roofs and facades where the look of the installation matters as much as its performance.
What warranty comes with the Rarlon PV Tech Monocrystalline Black panels?
The Monocrystalline Black series typically includes a product warranty covering material and workmanship defects, along with a linear power output warranty extending up to 25–30 years. Exact annual power thresholds and claim procedures should be confirmed in the current product datasheet or through an authorized distributor, as terms may vary by market.
Are the Rarlon PV Tech Monocrystalline Black panels bifacial?
No — the Monocrystalline Black series consists of monofacial modules. Energy is generated only by the front surface of the panel. No white reflective substrate or special roof structure is required for efficient operation, which simplifies installation and reduces balance-of-system (BoS) costs in standard pitched and flat-roof installations.
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