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LEDVANCE Brand review

M650~670P66UB-SF-F3 (650W class)

650 Wp PERC Bifacial
ComparePV verdict

Middle of its segment, needs the roof space

Rank 1,681 of 14,005
Compare panels Datasheet PDF
Power (Wp)
650
Weak · bottom 7%
Efficiency (%)
20.92
Weak · bottom 9%
Density (Wp/m²)
209.2
Weak · bottom 7%
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
38.3
Weak · 3.8 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The LEDVANCE M650-670P66UB-SF-F3 series is designed for installations where maximizing yield from every square meter is crucial - delivering uncompromising durability. These modules are based on monocrystalline PERC cells, supported by Multi Bus Bar (MBB) technology, which enhances performance during partial shading and helps minimize losses resulting from micro-cracks and internal resistances.

In practice, these panels address typical challenges in large-scale installations: uneven irradiation, high summer temperatures, and requirements for long operational life. The manufacturer highlights a limited PID effect thanks to quality control and low annual degradation, supporting stable energy production for years. An additional distinguishing feature are the original Stäubli MC4 EVO 2 connectors and the option for a version with a longer cable, facilitating work for installation teams and speeding up wiring on rooftops or ground structures.

This is an excellent choice for companies, investors, and installers working on commercial, industrial, and modern residential projects where predictable yield and reliable installation are key. High mechanical stress resistance and the refined design help them compete where working conditions are demanding.

Ranking

320 panels in the segment PERC 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.92% 21.25% Weak · bottom 9% 10,014
Power density 209.2 212.5 Weak · bottom 7% 10,011
Temperature coefficient -0.340 -0.340 Typical 8,778
Weight per kWp 58.9 52.3 Weak · bottom 8% 11,952
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 · 5 caution
Best for

Commercial, utility-scale and residential.

Not ideal for

Roofs where every square metre has to count, weight-limited structures and tight roof space.

Watch-outs
209.2 watts per square metre

Bottom 7% of the PERC 650-700 W segment, against a median of 212.5. Ranked 10,011th in the whole database.

58.9 kg per kWp

Bottom 8% of the PERC 650-700 W segment, against a median of 52.3. Ranked 11,952nd in the whole database.

20.92% module efficiency

Bottom 9% of the PERC 650-700 W segment, against a median of 21.25%. Ranked 10,014th in the whole database.

What owners get
Bifacial PERC technology

The modules use monocrystalline PERC cells in a bifacial configuration, capturing additional energy from reflected light on the rear side - beneficial for rooftops with light-colored surfaces or ground-mount installations with high albedo.

Multi Bus Bar (MBB) design

MBB reduces losses from microcracks and internal resistance while improving module behavior under partial shading, resulting in more stable energy yield in installations with uneven irradiance.

30-year linear power warranty

A 30-year power warranty combined with a 25-year product warranty exceeds typical market standards (usually 12-15 years product / 25 years power), reducing long-term degradation risk for the investment horizon.

Original Stäubli MC4 EVO 2 connectors

Use of certified Stäubli MC4 EVO 2 connectors (rather than cheaper substitutes) lowers the risk of DC connection failures and speeds up wiring on roofs or ground-mount structures, reducing installer labor time.

Competitive efficiency of 20.92-21.56%

Module efficiency is close to leading peer comparables (Hiwatt HW-M12/132H 21.6%, Techwise Summit Series 21.57%, Resun RS9H-M 21.57%), meaning no meaningful performance compromise despite the use of PERC rather than newer N-type cells.

Trade-offs
No Tier-1 (BNEF) bankability status

The manufacturer is not listed as bankable Tier-1 under BloombergNEF's methodology, which can complicate bank financing for large commercial projects (>10 MW) that require Tier-1 suppliers, despite solid technical module parameters.

PERC cells instead of N-type TOPCon/HJT

The series relies on older P-type PERC technology, while since 2024-2025 the market has shifted toward N-type cells (TOPCon, HJT) offering lower annual degradation and better high-temperature performance - by 2026, PERC is increasingly seen as legacy technology in the premium segment.

Notes from the database
  • At 20.9% efficiency, this panel is on par with typical PERC 650-700W modules
  • 209.2 W/m² power density is 3.2 W/m² below PERC 650-700W median (212.5 W/m²) - requires larger installation area
  • Temperature coefficient of -0.34%/°C matches the PERC 650-700W median
  • At 38.3 kg, this panel is 3.8 kg heavier than the PERC 650-700W median (34.5 kg) - more demanding for installation crews
  • In the top 72% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 650 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.92 % Weak Segment median 21.25%
Vmpp · Impp 37.73 V · 17.23 A Operating point at max power
Voc · Isc 45.56 V · 18.28 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1303×35 mm · 3.11 m² of roof
Weight 38.3 kg Weak Weak · 3.8 kg above median
Cells 132 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.340 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 85.0 % Equals 552 W guaranteed
Degradation 2.00 → 0.45 % 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
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.340 %/°C against a segment median of -0.340
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
LEDVANCE M650~670P66UB-SF-F3 (650W class) 650 W 20.92% -0.340 38.3 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +4.3 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, lighter, +4.3 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +4.1 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +4.1 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +50 W, cooler, +4.1 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +45 W, cooler, +4.0 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +3.9 pp
M655P66UM-BF-F3 655 W 21.08% -0.340 32.9 kg Lighter, -5 yr warranty
M660P66UM-BF-F3 660 W 21.24% -0.340 32.9 kg Lighter, +0.3 pp, -5 yr warranty
M665P66UM-BF-F3 665 W 21.40% -0.340 32.9 kg Lighter, +0.5 pp, -5 yr warranty
M670P66UM-BF-F3 670 W 21.56% -0.340 32.9 kg Lighter, +0.6 pp, -5 yr warranty
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +155 W, cooler, +4.2 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +150 W, cooler, +4.0 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +145 W, cooler, +3.9 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +140 W, cooler, +3.7 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +110 W, cooler, +3.6 pp

Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Are the LEDVANCE M650-670P66UB-SF-F3 panels bifacial, and how does that affect energy yield?
Yes, the M650-670P66UB-SF-F3 series are bifacial modules built on monocrystalline PERC cells, generating power from both the front and rear surfaces. In ground-mount installations or on reflective surfaces such as concrete, gravel, or snow, the bifacial gain typically adds 5–15% more energy output compared to a standard monofacial panel of the same rated power.
What warranty does the LEDVANCE M650-670P66UB-SF-F3 series carry?
The series comes with a 25-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. The 30-year power guarantee is among the longest available in the PV market, committing the manufacturer to maintaining a defined minimum percentage of the panel's rated output over three decades of operation.
How does MBB technology improve the performance of the LEDVANCE M650-670P66UB-SF-F3 under partial shading?
Multi Bus Bar (MBB) technology replaces a few wide busbars with multiple thin wires, shortening the current path across each cell. This reduces internal resistance losses and limits the impact of microcracks. Under partial shading conditions, MBB modules maintain higher output than conventional 3- or 4-busbar designs, and the technology also contributes to lower annual power degradation throughout the panel's service life.
Are the Stäubli MC4 EVO 2 connectors on the M650-670P66UB-SF-F3 series compatible with standard inverters?
Stäubli MC4 EVO 2 is one of the most widely used connector standards in PV installations and is compatible with the vast majority of inverters and power optimizers on the market. However, it is worth checking your inverter's documentation before installation, as some inverter manufacturers require their own-brand connectors to keep the device warranty valid. The series is also available in a longer cable version, simplifying wiring on large rooftops and ground-mount structures.
What types of installations are the LEDVANCE M650-670P66UB-SF-F3 modules rated up to 670 Wp suited for?
At up to 670 Wp, these large-format modules are primarily designed for commercial rooftop, industrial, and ground-mount solar farms where maximum power density and efficient wiring logistics matter most. They also fit modern residential installations with large, unobstructed roof sections. The manufacturer highlights high mechanical load resistance, making the series well-suited for demanding climatic conditions.
Is LEDVANCE a Tier 1 manufacturer, and are the M650-670P66UB-SF-F3 panels still available?
LEDVANCE is a German-headquartered manufacturer but is not listed in the Bloomberg NEF Tier 1 ranking. This does not imply poor quality — the brand uses MBB technology, monocrystalline PERC cells, limited PID effect controls, and original Stäubli MC4 EVO 2 connectors with a choice of cable length. The M650-670P66UB-SF-F3 series is not discontinued and remains available through authorized distributors.
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