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Sunlike Solar Brand review

LNET-665M

665 Wp PERC
ComparePV verdict

Middle of its segment, short guarantee

Rank 3,767 of 14,005
Compare panels Datasheet PDF
Power (Wp)
665
Typical for its class
Efficiency (%)
21.41
Typical · median 21.25%
Density (Wp/m²)
214.1
Typical · median 212.5
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
34.0
Typical · median 34.5 kg
Warranty (yrs)
25
Weak · bottom 21%

Sunlike Solar SERIES 6 photovoltaic panels introduce a new level of quality thanks to the use of M10 cell technology, which translates into significantly higher energy conversion efficiency compared to older module generations. This series has been designed to maximize yields from limited roof space, making it an ideal choice for both modern home installations and large-scale commercial farms. A key technological differentiator is the advanced Multi-Busbar (MBB) system, which effectively reduces losses resulting from internal resistance and minimizes the risk of harmful micro-cracks. Thanks to a low temperature coefficient, these modules maintain high efficiency even during hot summer days, directly solving the problem of power drops under intense sunlight. The durable frame construction ensures exceptional resistance to extreme mechanical loads, guaranteeing the safety and reliability of the system for decades. By choosing SERIES 6, the investor receives full protection against the PID effect and excellent performance characteristics in diffused light, which clearly distinguishes these products from cheaper alternatives. This is a solution dedicated to professionals for whom the priority is high power density and maximum investment profitability in the long-term perspective.

Ranking

320 panels in the segment PERC 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.41% 21.25% Typical 8,280
Power density 214.1 212.5 Typical 8,250
Temperature coefficient -0.340 -0.340 Typical 8,778
Weight per kWp 51.1 52.3 Typical 4,471
Performance warranty 25 yrs 30 yrs Weak · bottom 21% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Not ideal for

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 21% of the PERC 650-700 W segment, against a median of 30 yrs.

Notes from the database
  • Efficiency of 21.4% matches the PERC 650-700W median
  • Power density of 214.1 W/m² matches the PERC 650-700W median
  • Temperature coefficient of -0.34%/°C matches the PERC 650-700W median
  • In the top 59% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 665 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.41 % Typical Segment median 21.25%
Vmpp · Impp 38.04 V · 17.48 A Operating point at max power
Voc · Isc 45.54 V · 18.73 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 34.0 kg Typical Typical · median 34.5 kg
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 43 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 21% · median 30 yrs
End-of-warranty output 84.8 % Equals 546 W guaranteed
Degradation 2.50 → 0.53 % 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
Sunlike Solar LNET-665M 665 W 21.41% -0.340 34.0 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +3.8 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, lighter, +3.8 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +3.6 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +3.6 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Cooler, +3.6 pp, +5 yr warranty
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg Cooler, +3.5 pp, +5 yr warranty
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +3.4 pp
LNET-650MD 650 W 20.92% -0.340 34.0 kg -15 W, -0.5 pp
LNET-655M 655 W 21.09% -0.340 34.0 kg -10 W, -0.3 pp
LNET-660M 660 W 21.25% -0.340 34.0 kg Very close match
LNET-670M 670 W 21.57% -0.340 34.0 kg Very close match
LNET-675M 675 W 21.73% -0.340 34.0 kg +10 W, +0.3 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +140 W, cooler, +3.7 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +135 W, cooler, +3.5 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +130 W, cooler, +3.4 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +125 W, cooler, +3.2 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
What warranty does the Sunlike Solar SERIES 6 come with?
Sunlike Solar backs the SERIES 6 with two separate warranties: a 12-year product warranty covering defects in materials and workmanship, and a 25-year linear power output warranty. The 25-year power guarantee lets homeowners and commercial investors confidently calculate long-term return on investment, knowing the modules will maintain rated performance for a quarter of a century.
Do Sunlike Solar SERIES 6 675 W panels lose significant power output during hot summer days?
The SERIES 6 uses PERC M10 cells with a low temperature coefficient, which limits power loss at high operating temperatures compared to older-generation modules. This means the panels continue generating strong output during peak summer heat, directly improving annual energy yield and lowering the effective LCOE of the installation over its lifetime.
What is Multi-Busbar (MBB) technology in the SERIES 6 and why does it matter?
Multi-Busbar replaces a few thick busbars with many thin wires spread across the cell surface. This shortens the current path, reducing resistive losses and significantly lowering the risk of microcracks forming during shipping and operation. For the system owner it means higher module efficiency and better durability across the full 25-year power warranty period.
Is the Sunlike Solar SERIES 6 a bifacial or monofacial module?
The Sunlike Solar SERIES 6 is a monofacial module — it captures sunlight from the front face only and does not feature bifacial cell technology. This eliminates the need for a high-albedo ground surface or elevated racking structures required by bifacial modules, simplifying system design and keeping balance-of-system (BoS) costs lower.
What is PID and are SERIES 6 panels protected against it?
Potential Induced Degradation (PID) is a gradual power loss caused by high system voltage and moisture penetrating the module. It is a serious concern in large-scale string inverter systems running at 1000–1500 V DC. Sunlike Solar SERIES 6 panels are engineered with full PID resistance, ensuring rated power output is maintained throughout the entire 25-year performance warranty.
Do M10 PERC cells in the SERIES 6 deliver more power from a limited roof area?
Yes. The M10 wafer format (182 mm) is one of the latest cell generations in high-volume production. Combined with PERC technology and Multi-Busbar interconnection, it enables high power density per square meter. The SERIES 6 reaches up to 675 Wp per panel, delivering more kilowatts from the same roof footprint than modules based on older 166 mm or 156 mm cell formats.
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