--- title: "MSolar MS-370M 370W Solar Panel - Specs & Review | ComparePV" description: "MSolar MS-370M 370W solar panel. Specs: 19.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/msolar-ms-370m" updated: 2026-09-11 --- # MSolar MS-370M Middle of its segment, weak in heat 5,700 panels in the 270-470 W band, all technologies ## Identity - **Manufacturer:** MSolar - **Model:** MS-370M - **Series:** MS series MONO 350-370W 9BB - **Rated power:** 370 W - **Cell technology:** Monocrystalline ## How it compares Compared against 270-470 W band, all technologies (5700 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 370 W | 425 W | Weak - bottom 17% | | | Module efficiency | 19.80% | 21.06% | Weak - bottom 20% | 12,416 | | Power density | 200.0 | 210.3 | Weak - bottom 23% | 12,227 | | Temperature coefficient | -0.360 | -0.320 | Weak - bottom 14% | 12,345 | | Weight (kg) | 22.0 kg | 22.0 kg | Weak - bottom 19% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 21% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.80% | 21.06% | Weak - bottom 20% | 12,416 | | Power density | 200.0 | 210.3 | Weak - bottom 23% | 12,227 | | Temperature coefficient | -0.360 | -0.320 | Weak - bottom 14% | 12,345 | | Weight per kWp | 59.5 | 53.7 | Weak - bottom 19% | 12,155 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 21% | 9,798 | ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 14% of the 270-470 W band, against a median of -0.320. - **59.5 kg per kWp** - Bottom 19% of the 270-470 W band, against a median of 53.7. - **19.80% module efficiency** - Bottom 20% of the 270-470 W band, against a median of 21.06%. - **Not ideal for:** Hot climates, weight-limited structures and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 370 W - **Efficiency:** 19.80 % - **Voltage at Pmax (Vmp):** 34.13 V - **Current at Pmax (Imp):** 10.84 A - **Open-circuit voltage (Voc):** 41.18 V - **Short-circuit current (Isc):** 11.34 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 120 ### Physical - **Length:** 1765 mm - **Width:** 1048 mm - **Thickness:** 35 mm - **Weight:** 22.0 kg - **Area:** 1.85 m2 - **Power density:** 200.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 10 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 80.7 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.70 % - **Output after 30 years:** 286 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12416 of 14005 | | Power density | 12227 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 12155 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **9-busbar (9BB) technology** - Nine busbars shorten the current collection path, reducing resistive losses and lowering the risk of cell microcracks, which supports more stable module performance over time. - **Efficiency up to 19.8%** - The top efficiency figure (19.8%) is competitive within the mono segment and close to the Solitek SOLID Bifacial result (19.57%), delivering solid energy yield on limited roof area. - **High mechanical load resistance** - The module design offers enhanced resistance to wind and snow loads, making the series a suitable choice for sites exposed to harsh weather conditions. - **Compact power for small roofs** - Power up to 370W in a standard module footprint makes the series attractive for single-family homes and small commercial buildings with limited mounting area. - **Optimized temperature coefficient** - The panels maintain more stable performance at high temperatures, limiting energy output drops during hot summer days compared to modules with weaker temperature coefficients. ## Cons - **No Tier-1 (BNEF) status** - The manufacturer does not appear on the BloombergNEF Tier-1 list, which can complicate bank financing for the project and reduce investment attractiveness compared to bankable brands such as Solarwatt or Solitek. - **Below-peer efficiency at the lower end** - The series' lower efficiency bound (18.75%) is clearly below comparable products at the same peak power - Selfa SV120M.3.2 (20.3%) and Solarwatt vision GM 3.0 (19.9%) - meaning the 350W variants yield less energy per unit of roof area. - **No bifacial variant** - Unlike the comparable Solitek SOLID Bifacial model at the same peak power (370W), the MSolar MS series is offered only as a monofacial module, excluding the extra albedo-driven energy gain available on light-colored roofs or ground-mount installations. ## About this series MSolar MS series MONO 350-370W 9BB panels are a modern solution based on **9-busbar technology**, which significantly shortens the electron flow path, reducing resistive losses and minimizing the risk of micro-cracks. The use of monocrystalline cells in this series guarantees higher efficiency even in less favorable lighting conditions, which directly translates into stable energy yields throughout the year. What sets this line apart from the competition is its **high resistance to mechanical loads**, making the modules perform excellently in extreme weather conditions such as strong winds or heavy snow accumulation. This series was designed for users seeking **maximum efficiency from limited roof space**, making it an ideal choice for owners of single-family homes and small commercial facilities. Thanks to precise quality control and an **optimized temperature coefficient**, these panels maintain excellent operating parameters even on hot days. By choosing MSolar MS, investors gain the assurance of **long-term reliability** and an aesthetic installation appearance that blends perfectly with modern architecture. It is a wise choice for those who value proven technology and solid workmanship without unnecessary compromises. ## Notable figures - At 19.8% efficiency, this panel is 2.0pp below the \*\*database\*\* median of 21.8% - At 200.0 W/m², this panel generates 18.1 W/m² less per unit area than \*\*database\*\* median (218.1 W/m²) - At -0.36%/°C, loses 0.06pp more power per degree than \*\*database\*\* median (-0.30%/°C) - 22.0 kg weight - 4.5 kg lighter than \*\*database\*\* median (26.5 kg), reducing installation effort - #12416 for efficiency, #12345 for temperature performance out of 14005 panels ## Questions ### What does 9BB technology mean in the MSolar MS series MONO 350-370W panels and why does it matter? 9BB (9 busbars) means the cell current is collected through nine thin ribbons instead of the traditional three or four. Shorter electron paths reduce resistive losses, while finer busbars lower mechanical stress on the cell, minimizing the risk of microcracks. In practice this translates to higher module efficiency and longer cell lifespan — a benefit felt throughout the entire service life of the installation. ### What is the warranty on MSolar MS series MONO 350-370W 9BB panels? The manufacturer provides a 10-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty. This means the panels should maintain energy production in line with the datasheet specifications for a quarter of a century. Since MSolar is not listed as a Tier 1 manufacturer, it is advisable to confirm warranty enforcement terms with your local distributor before purchasing. ### Are MSolar MS series MONO 350-370W 9BB panels a good fit for a small residential roof? Yes, the MS MONO 350-370W series was designed with prosumer installations in mind, particularly where maximizing power from limited roof space is critical. Monocrystalline cells deliver higher efficiency per square meter compared to polycrystalline modules, allowing more watt-peaks to fit on a smaller roof section. This makes the series a strong choice for single-family homes with small or partially shaded roof areas. ### How do MSolar MS series MONO 9BB panels perform in high summer temperatures? Thanks to an optimized temperature coefficient, the MS MONO series loses less power when module temperature rises above 25°C than older polycrystalline designs. Monocrystalline cells exhibit better parameter stability on hot days, resulting in genuinely higher energy yields during peak season. Check the datasheet for the exact Pmax temperature coefficient value for the specific wattage variant you are considering. ### Are MSolar MS series MONO 350-370W 9BB modules resistant to snow loads and strong wind? The MS MONO series was engineered for high mechanical load resistance, meaning the modules can withstand accumulated snow and strong wind gusts typical of Central European climates. The aluminum frame and glass-backsheet laminate absorb stress without damaging the cells. Before installation, cross-reference the allowable loads from the datasheet with local conditions, especially in mountain regions or high-wind exposure zones. ### Are MSolar MS series MONO 350-370W 9BB panels bifacial and can they generate power from the rear side? No, the MS series MONO 350-370W 9BB is a monofacial module — it collects solar energy from the front surface only. It does not feature a transparent backsheet or a cell architecture that allows it to harvest reflected light from the rear. If bifacial technology and the associated yield gain from ground albedo are a priority for your project, a different series or manufacturer would need to be selected. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/MSolar-LuxHyp-9BB-350-370W-ENG-02-f81e18913757.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +3.3 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +3.3 pp | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | -50 W, lighter, +3.2 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +3.2 pp, +5 yr warranty | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +2.8 pp, +15 yr warranty | | [MSolar MS-350M](https://comparepv.com/panel/msolar-ms-350m) | 350 W | -20 W, -1.1 pp | | [MSolar MS-355M](https://comparepv.com/panel/msolar-ms-355m) | 355 W | -15 W, -0.8 pp | | [MSolar MS-360M](https://comparepv.com/panel/msolar-ms-360m) | 360 W | -10 W, -0.5 pp | | [MSolar MS-365M](https://comparepv.com/panel/msolar-ms-365m) | 365 W | -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +140 W, cooler, +5.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +125 W, cooler, +5.0 pp | --- Source: https://comparepv.com/panel/msolar-ms-370m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.