--- title: "Sunlike Solar LNET-670M 670W Solar Panel - Specs & Review | ComparePV" description: "Sunlike Solar LNET-670M 670W solar panel. Specs: 21.57% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunlike-solar-lnet-670m" updated: 2026-09-11 --- # Sunlike Solar LNET-670M Space saver, short guarantee 320 panels in the segment PERC 650-700 W ## Identity - **Manufacturer:** Sunlike Solar - **Model:** LNET-670M - **Series:** SERIES 6 - **Rated power:** 670 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 650-700 W (320 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 670 W | 660 W | Strong - top 18% | | | Module efficiency | 21.57% | 21.25% | Strong - top 20% | 7,734 | | Power density | 215.7 | 212.5 | Strong - top 18% | 7,644 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight (kg) | 34.0 kg | 34.5 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 21% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.57% | 21.25% | Strong - top 20% | 7,734 | | Power density | 215.7 | 212.5 | Strong - top 18% | 7,644 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight per kWp | 50.7 | 52.3 | Typical | 4,151 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 21% | 9,798 | ### Strengths - **215.7 watts per square metre** - Top 18% of the PERC 650-700 W segment, against a median of 212.5. - **21.57% module efficiency** - Top 20% of the PERC 650-700 W segment, against a median of 21.25%. ### Watch out for - **25 year performance warranty** - Bottom 21% of the PERC 650-700 W segment, against a median of 30 yrs. - **Best for:** Roofs where every square metre counts and small roofs that need every watt. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 670 W - **Efficiency:** 21.57 % - **Voltage at Pmax (Vmp):** 38.22 V - **Current at Pmax (Imp):** 17.53 A - **Open-circuit voltage (Voc):** 45.71 V - **Short-circuit current (Isc):** 18.78 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 132 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 34.0 kg - **Area:** 3.11 m2 - **Power density:** 215.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.53 % - **Output after 30 years:** 550 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7734 of 14005 | | Power density | 7644 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 4151 of 14005 | | Warranty | 9798 of 14005 | ## About this series 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. ## Notable figures - Efficiency of 21.6% matches the \*\*PERC 650-700W\*\* median - Power density of 215.7 W/m² packs 3.2 W/m² more into the same footprint vs \*\*PERC 650-700W\*\* median (212.5 W/m²) - Temperature coefficient of -0.34%/°C matches the \*\*PERC 650-700W\*\* median - #7734 for efficiency, #8778 for temperature performance out of 14005 panels ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/210-132CELL-655-675W-8c9f0d79bdd4.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +3.6 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +3.6 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +3.4 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +3.4 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, +3.4 pp, +5 yr warranty | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, +3.3 pp, +5 yr warranty | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +3.2 pp | | [Sunlike Solar LNET-650MD](https://comparepv.com/panel/sunlike-solar-lnet-650md) | 650 W | -20 W, -0.6 pp | | [Sunlike Solar LNET-655M](https://comparepv.com/panel/sunlike-solar-lnet-655m) | 655 W | -15 W, -0.5 pp | | [Sunlike Solar LNET-660M](https://comparepv.com/panel/sunlike-solar-lnet-660m) | 660 W | -10 W, -0.3 pp | | [Sunlike Solar LNET-665M](https://comparepv.com/panel/sunlike-solar-lnet-665m) | 665 W | Very close match | | [Sunlike Solar LNET-675M](https://comparepv.com/panel/sunlike-solar-lnet-675m) | 675 W | Very close match | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +135 W, cooler, +3.5 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +130 W, cooler, +3.3 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +125 W, cooler, +3.2 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +120 W, cooler, +3.0 pp | --- Source: https://comparepv.com/panel/sunlike-solar-lnet-670m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.