Skip to main content
Recom Brand review

RCM-440-RDBHAA

440 Wp HJT Bifacial 90%
ComparePV verdict

Middle of its segment, weak in heat

Rank 6,047 of 14,129
Compare panels Datasheet PDF
Power (Wp)
440
Typical for its class
Efficiency (%)
22.02
Typical · median 22.20%
Density (Wp/m²)
220.2
Typical · median 221.6
Temp (%/°C)
-0.260
Weak · bottom 23%
Weight (kg)
23.0
Typical · median 23.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Recom Lion series comprises modules based on heterojunction technology (HJT), designed for high energy production even under less-than-ideal conditions. Thanks to their double-glass construction, the panels are better able to withstand environmental stresses and are more stable over time, which is appreciated by investors who prioritize predictable energy yield. A key advantage is high bifaciality - the module can effectively "collect" light from both sides, increasing the profitability of installations on ground surfaces, light roofs, and surfaces that reflect light.

In practice, the Lion Series addresses common installation problems in Poland, such as reduced energy production during hot weather and under poor sunlight conditions. HJT ensures good performance at high temperatures and more effective energy capture in the morning, evening, and on cloudy days. Furthermore, the use of N-type cells results in resistance to LID and PID, which helps maintain efficiency over the long term. This is a series for demanding applications, from single-family homes to PV farms, where energy yield, durability, and energy costs are key considerations.

Ranking

113 panels in the segment HJT 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.02% 22.20% Typical 6,392
Power density 220.2 221.6 Typical 6,391
Temperature coefficient -0.260 -0.240 Weak · bottom 23% 515
Weight per kWp 52.3 52.4 Typical 5,777
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 3 caution
Best for

Residential and commercial.

Not ideal for

Hot climates.

Watch-outs
-0.260 %/°C temperature coefficient

Bottom 23% of the HJT 400-450 W segment, against a median of -0.240.

What owners get
Extremely high HJT efficiency

Efficiency of 22.02-23.02% places the Lion Series among the segment leaders - matching Phono Solar Draco and SunKean (both 23.02%) and surpassing the Axitec AXIbiperfect GR WB (22.54%). HJT technology combines the strengths of crystalline and thin-film cells, delivering higher yield per unit of roof area.

30-year product and power warranty

Recom offers 30 years of both product and power warranty - substantially longer than the standard 12-15 year product warranty and 25-year power warranty offered by most tier-1 manufacturers (e.g., Trina, JA Solar). For investors, this means a longer horizon of predictable ROI.

Double-glass construction and bifaciality

Double glass construction increases mechanical durability and limits moisture-related degradation compared to backsheet designs, directly supporting the 30-year warranty claim. High bifaciality of the HJT cells allows the module to additionally harvest rear-side light, particularly cost-effective for ground-mount installations, light-colored roofs, or reflective surfaces.

LID and PID resistance (N-type cells)

N-type cells eliminate the Light Induced Degradation (LID) typical of older PERC technology and reduce PID risk, resulting in more stable long-term energy output consistent with the stated power warranty.

Strong high-temperature performance

HJT has a lower power temperature coefficient than classic PERC or even TOPCon cells, limiting output losses on hot days - a notable advantage in Polish summer conditions, where panel temperatures can exceed 60°C.

Trade-offs
No Tier-1 bankability status

Unlike some earlier periods, the series does not currently hold Bloomberg Tier-1 status, which can complicate non-recourse financing for large PV projects (>1.5 MW) compared to competitors currently on the tier-1 list.

Smaller manufacturing scale

Recom is a manufacturer founded in 2007, headquartered in Italy, with noticeably smaller production scale than industry giants like Trina Solar or JA Solar from the peer comparables - for large, multi-year EPC contracts this may mean higher risk regarding global warranty service availability.

Notes from the database
  • At 22.0% efficiency, this panel is on par with typical HJT 400-450W modules
  • At 220.2 W/m² power density, roof space requirements are typical for HJT 400-450W panels
  • -0.26%/°C temperature coefficient - 0.02pp worse than HJT 400-450W median (-0.24%/°C), expect higher hot weather losses
  • 90% bifaciality enables rear-side power generation, boosting yield by 4-14% on reflective surfaces
  • #6392 for efficiency, #515 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 440 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.02 % Typical Segment median 22.20%
Vmpp · Impp 30.43 V · 14.47 A Operating point at max power
Voc · Isc 36.68 V · 15.62 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 23.0 kg Typical Typical · median 23.0 kg
Cells 192 · HJT Monocrystalline
Bifaciality 90 % Rear output as a share of front
Coefficient Pmax -0.260 %/°C Weak bottom 23% of its segment
Coefficient Voc · Isc -0.240 · 0.040 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 90.0 % Equals 396 W guaranteed
Degradation 1.00 → 0.31 % First year, then annual

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
-0.260 %/°C against a segment median of -0.240
-
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
Recom RCM-440-RDBHAA 440 W 22.02% -0.260 23.0 kg You are here
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +50 W, lighter, +2.5 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +50 W, lighter, +2.5 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +45 W, lighter, +2.3 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +45 W, lighter, +2.3 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +45 W, lighter, +2.3 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +45 W, lighter, +2.3 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +45 W, heavier, +2.3 pp
RCM-445-RDBNAA 445 W 22.27% -0.280 21.0 kg Hotter, lighter, +0.2 pp
RCM-450-RDBNAA 450 W 22.52% -0.280 21.0 kg Hotter, lighter, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +70 W, cooler, +3.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +55 W, lighter, +2.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +65 W, cooler, +2.7 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +65 W, heavier, +2.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +60 W, cooler, +2.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +60 W, lighter, +2.5 pp

Found 1402 panels of the same or similar size to this one, within ±10 mm. See them here Found 1432 panels of the same or similar size to this one, within ±25 mm. See them here Found 3651 panels of the same or similar size to this one, within ±50 mm. See them here Found 3999 panels of the same or similar size to this one, within ±100 mm. See them here

About the Lion Series series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

Why do Recom Lion Series panels perform better on hot summer days than standard PERC modules?
The HJT technology used in the Lion Series delivers a temperature coefficient of approximately -0.24%/°C, compared to -0.35%/°C or worse for typical PERC modules. In practice, when a panel heats up to 70°C, the Lion module loses noticeably less power output than a comparable PERC panel. For rooftop installations where surface temperatures regularly exceed 60°C in summer, this translates into a measurably higher annual energy yield.
Does the bifacial design of the Recom Lion Series actually increase energy production, and which installations benefit most?
The Lion Series achieves a bifaciality factor of up to 90%, meaning the rear side of the panel can generate up to 90% of the power produced by the front side. The greatest gains occur in ground-mounted systems with bright soil or gravel, on flat white rooftops, and wherever reflected light can reach the module's rear surface. Under favorable albedo conditions, bifaciality can add several to over ten percent to annual energy output compared to a monofacial module.
What warranty does the Recom Lion Series come with, and what does the power output guarantee cover?
Recom provides a 30-year product warranty and a 30-year linear power output warranty. The module must retain at least 94.66% of nominal power after 15 years and at least 91.25% after 30 years. These are among the strictest power warranty conditions available for HJT modules on the market. The warranty is transferable, which is relevant if the property with the PV system is ever sold.
Are Recom Lion Series modules resistant to LID and PID degradation that reduces efficiency in older panels?
Yes. The HJT cells in the Lion Series are built on an N-type silicon substrate, which by design does not undergo LID (Light Induced Degradation) caused by boron in P-type cells. The modules also carry certified resistance to PID (Potential Induced Degradation), which is especially important in large-scale PV plants and farms where system voltages are high. This directly results in lower long-term power loss over the module's lifetime.
What are the dimensions of the Recom Lion Series 460W panel, and will it fit on a typical residential roof?
The Recom Lion 460W variant measures approximately 2094 x 1038 x 30 mm in a double-glass configuration. This is a standard format for 144-cell modules and is compatible with most racking systems available on the market. The double-glass construction adds weight compared to framed alternatives, so for older roof structures it is advisable to have a structural load assessment carried out before installation.
Recom is not listed as a Tier 1 manufacturer - is that a risk when choosing the Lion Series?
Tier 1 rankings (Bloomberg NEF) assess a manufacturer's creditworthiness and bankability in large financed projects, not the technical quality of their modules. Recom is an Italian manufacturer with its own HJT production lines and a documented track record in the premium module segment. More relevant than a Tier 1 designation are the warranty terms, the company's financial stability, and the availability of after-sales service through a local distributor. Always verify warranty service conditions with your regional supplier before purchasing.
Add to compare