--- title: "LEDVANCE M700N66UB-SF-F7 700W Solar Panel - Specs & Review | ComparePV" description: "LEDVANCE M700N66UB-SF-F7 700W solar panel. Specs: 22.53% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ledvance-m700n66ub-sf-f7" updated: 2026-09-11 --- # LEDVANCE M700N66UB-SF-F7 Light for its output, needs the roof space 420 panels in the segment TOPCon 700-750 W ## Identity - **Manufacturer:** LEDVANCE - **Model:** M700N66UB-SF-F7 - **Series:** M685~705N66UB-SF-F7 - **Rated power:** 700 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 700-750 W (420 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 700 W | 715 W | Weak - bottom 7% | | | Module efficiency | 22.53% | 23.00% | Weak - bottom 11% | 3,982 | | Power density | 225.3 | 230.2 | Weak - bottom 7% | 3,989 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 22% | 6,093 | | Weight (kg) | 34.5 kg | 38.0 kg | Strong - top 17% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.53% | 23.00% | Weak - bottom 11% | 3,982 | | Power density | 225.3 | 230.2 | Weak - bottom 7% | 3,989 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 22% | 6,093 | | Weight per kWp | 49.3 | 52.9 | Strong - top 17% | 2,850 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **49.3 kg per kWp** - Top 17% of the TOPCon 700-750 W segment, against a median of 52.9. ### Watch out for - **225.3 watts per square metre** - Bottom 7% of the TOPCon 700-750 W segment, against a median of 230.2. Ranked 3,989th in the whole database. - **22.53% module efficiency** - Bottom 11% of the TOPCon 700-750 W segment, against a median of 23.00%. - **-0.300 %/°C temperature coefficient** - Bottom 22% of the TOPCon 700-750 W segment, against a median of -0.290. - **Best for:** Commercial, utility-scale and hot-climate. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 700 W - **Efficiency:** 22.53 % - **Voltage at Pmax (Vmp):** 40.50 V - **Current at Pmax (Imp):** 17.29 A - **Open-circuit voltage (Voc):** 48.00 V - **Short-circuit current (Isc):** 18.32 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 34.5 kg - **Area:** 3.11 m2 - **Power density:** 225.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 612 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3982 of 14005 | | Power density | 3989 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 2850 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon + glass-glass design** - N-type TOPCon cells combined with a glass-glass (double-glass) construction reduce LID/LETID degradation and improve moisture sealing, which matters for industrial rooftop installations and utility-scale PV farms exposed to harsher operating conditions. - **30-year linear power warranty** - The manufacturer offers a 25-year product warranty and a 30-year linear power warranty - a term comparable to leading TOPCon peer series (Renesola RS9, Luxen N6, Hanersun HiTouch 6N), making long-term LCOE calculations more favorable. - **Up to 22.7% efficiency, on par with segment leaders** - Peak efficiency of 22.7% matches the best comparable TOPCon series on the market (Renesola RS9-685~705NG-E1, Luxen N6, Hanersun HiTouch 6N), so the module does not lag behind the 2024-2026 top tier in performance. - **Genuine Stäubli MC4 EVO2 connectors and MBB technology** - The use of certified Stäubli MC4 EVO2 connectors and multi-busbar (MBB) cell architecture improves electrical connection reliability and current collection uniformity, translating into lower resistive losses across the installation. - **Bifacial design for increased energy yield** - The bifacial construction captures additional reflected irradiance on the rear side of the module, which on bright ground surfaces or in ground-mount configurations can boost annual energy yield by several percentage points versus monofacial modules. ## Cons - **No Tier-1 (BNEF) manufacturer status** - LEDVANCE is not on BloombergNEF's Tier-1 list (as of 2026), unlike some suppliers of comparable TOPCon series. This can complicate securing project financing for large-scale PV farms, as banks often require Tier-1-listed modules. - **Short brand track record in the PV market** - The LEDVANCE brand has operated since 2016, and the M685~705N66UB-SF-F7 series was only released in 2024 - a shorter field history means less real-world degradation data compared to manufacturers with a longer track record in the TOPCon segment. ## About this series The LEDVANCE M685~705N66UB-SF-F7 series are dual-sided N-type modules using **TOPCon** technology, designed for high energy yield even under less-than-ideal conditions. The glass-glass construction enhances protection against moisture and mechanical stress, effectively reducing the risk of accelerated aging in challenging operational environments. Thanks to its **limited PID effect** and stable performance at higher temperatures, this series helps maintain predictable power output and minimizes power losses over time, which is critical for project profitability calculations. These modules are also designed for reliable installation-featuring **original Stäubli MC4 EVO2 connectors** and solutions for uniform current collection (MBB). This is an excellent choice for utility-scale PV farms, commercial and industrial installations, and large rooftops, where durability, resilience, and a long product warranty with linear power decay are essential. ## Notable figures - At 22.5% efficiency, this panel is on par with typical \*\*TOPCon 700-750W\*\* modules - 225.3 W/m² power density is 4.9 W/m² below \*\*TOPCon 700-750W\*\* median (230.2 W/m²) - requires larger installation area - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 700-750W\*\* panels - 34.5 kg weight - 3.5 kg lighter than \*\*TOPCon 700-750W\*\* median (38.0 kg), reducing installation effort - Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface ## Questions ### What warranty does the LEDVANCE M685~705N66UB-SF-F7 series come with? The LEDVANCE M685~705N66UB-SF-F7 series includes a 25-year product warranty and a 30-year linear power output warranty. This is among the longer warranty standards in this product class, giving project owners better long-term revenue predictability and making it easier to secure financing for PV installations. ### Is the bifacial LEDVANCE M685~705N66UB-SF-F7 worth choosing for a utility-scale PV farm or flat rooftop? Yes, especially on ground-mounted PV farms and flat rooftops with light-colored or reflective surfaces, where the module's rear side captures reflected irradiance and can boost energy yield by several percentage points over a monofacial panel. On steep pitched roofs, bifacial gain is typically minimal because the mounting angle limits rear-side light access. ### What is TOPCon technology and how does it differ from previous-generation PERC panels? TOPCon (Tunnel Oxide Passivated Contact) uses N-type cells with a thin tunnel oxide passivation layer that reduces carrier recombination, enabling higher efficiency than standard PERC. It also delivers a better temperature coefficient, meaning smaller power losses on hot days. The M685~705N66UB-SF-F7 series uses TOPCon to produce noticeably more annual energy per square meter than typical PERC modules. ### Are the LEDVANCE M685~705N66UB-SF-F7 modules compatible with third-party MC4 connectors? The series ships with genuine Stäubli MC4 EVO2 connectors, the established industry standard. These are mechanically compatible with other MC4-certified connectors; however, to protect the product warranty and maintain electrical safety, it is recommended to use connectors from the same manufacturer or obtain written cross-compatibility confirmation from your inverter or racking supplier. ### How does the LEDVANCE M685~705N66UB-SF-F7 series perform under overcast skies and low-irradiance conditions? N-type TOPCon cells are known for strong low-light performance, generating proportionally more power under diffuse irradiance than PERC modules. The bifacial design additionally captures reflected diffuse light from the ground or cloud cover, helping maintain higher daily energy yield on cloudy days. The series' resistance to PID also ensures stable output over extended operating periods. ### Is the LEDVANCE M685~705N66UB-SF-F7 series suitable for large commercial rooftops and industrial PV installations? Yes. The high power output of up to 705 Wp, durable glass-glass construction resistant to moisture ingress and mechanical loading, Stäubli MC4 EVO2 connectors, and extended warranties — 25-year product and 30-year power — are exactly the attributes prioritized in commercial and industrial projects. The modules perform well on large low-pitched commercial rooftops as well as ground-mounted utility-scale installations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/asset-13237347-m685-705n66ub-sf-f7-aa6187e23cbb.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | -50 W, lighter, +2.7 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +2.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, +2.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, +2.4 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +2.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Cooler, lighter, +2.3 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | -30 W, cooler, +2.3 pp | | [LEDVANCE M650P66UM-BF-F3](https://comparepv.com/panel/ledvance-m650p66um-bf-f3) | 650 W | -50 W, -1.6 pp, -5 yr warranty | | [LEDVANCE M655P66UM-BF-F3](https://comparepv.com/panel/ledvance-m655p66um-bf-f3) | 655 W | -45 W, -1.5 pp, -5 yr warranty | | [LEDVANCE M660P66UM-BF-F3](https://comparepv.com/panel/ledvance-m660p66um-bf-f3) | 660 W | Hotter, -1.3 pp, -5 yr warranty | | [LEDVANCE M665P66UM-BF-F3](https://comparepv.com/panel/ledvance-m665p66um-bf-f3) | 665 W | Hotter, -1.1 pp, -5 yr warranty | | [LEDVANCE M670P66UM-BF-F3](https://comparepv.com/panel/ledvance-m670p66um-bf-f3) | 670 W | Hotter, -1.0 pp, -5 yr warranty | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +105 W, heavier, +2.6 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +100 W, heavier, +2.4 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +95 W, heavier, +2.3 pp | --- Source: https://comparepv.com/panel/ledvance-m700n66ub-sf-f7 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.