--- title: "Heliene 108HC-395 M10 SL All Black (Monofacial) 395W Solar Panel - Specs & Review | ComparePV" description: "Heliene 108HC-395 M10 SL All Black (Monofacial) 395W solar panel. Specs: 20.20% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/heliene-108hc-395-m10-sl-all-black-monofacial" updated: 2026-09-11 --- # Heliene 108HC-395 M10 SL All Black (Monofacial) Strong in heat, no clear weak spot 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Heliene - **Model:** 108HC-395 M10 SL All Black (Monofacial) - **Series:** 108HC M10 SL All Black Module - **Rated power:** 395 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 395 W | 380 W | Strong - top 12% | | | Module efficiency | 20.20% | 19.90% | Typical | 11,956 | | Power density | 202.3 | 199.0 | Typical | 11,887 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,778 | | Weight (kg) | 21.5 kg | 21.4 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.20% | 19.90% | Typical | 11,956 | | Power density | 202.3 | 199.0 | Typical | 11,887 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,778 | | Weight per kWp | 54.4 | 55.8 | Typical | 8,731 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.340 %/°C temperature coefficient** - Top 15% of the PERC 350-400 W segment, against a median of -0.350. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 395 W - **Efficiency:** 20.20 % - **Voltage at Pmax (Vmp):** 31.49 V - **Current at Pmax (Imp):** 12.56 A - **Open-circuit voltage (Voc):** 37.38 V - **Short-circuit current (Isc):** 13.28 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:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 21.5 kg - **Area:** 1.95 m2 - **Power density:** 202.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 25 years - **First-year degradation:** 2.00 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 330 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11956 of 14005 | | Power density | 11887 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 8731 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **PVEL Top Performer 2024 – Verified Reliability** - Heliene earned Top Performer status in the 9th edition of the Kiwa PVEL PV Module Reliability Scorecard (2024) – an independent benchmark widely recognized as the most authoritative indicator of PV module durability. This is an objective validation of manufacturing quality, not a marketing claim. - **19.5–20.5% Efficiency – Leading Among Comparable PERC Modules** - This series outperforms its direct competitor, the DMEGC GH400M10T-B48HST at the same 400 Wp rating, which achieves only 15.48% efficiency – a ~5 percentage-point gap that translates to a meaningfully smaller installation footprint for the same energy yield. The series matches the Solaria PowerXT (20.2%) at a likely lower cost. - **Half-Cut 108HC Cells + Split Junction Box** - The 108 half-cut cell layout halves the operating current in each string, reducing I²R resistive losses. The split junction box further shortens internal current paths, minimizing CTM losses and improving performance under partial shading conditions. - **North American Manufacturing – Short Supply Chain** - Factories in Minnesota (USA) and Ontario (Canada) eliminate the risks of extended lead times, import tariffs, and logistical challenges typical of Asian-sourced modules. The series qualifies for programs supporting domestic content requirements in projects covered by the IRA (Inflation Reduction Act). - **25-Year Product and Power Warranty with ≥86% Retention** - The manufacturer offers a 25-year warranty covering both the product and power output, guaranteeing no less than 86% of nominal power after 25 years. This is on par with segment leaders and meaningfully better than the typical 10/25-year warranties offered by many Tier-2 Asian manufacturers. ## Cons - **PERC Instead of TOPCon – Older Cell Generation** - Since 2022, Heliene has offered a newer 108HC M10 NTYP SL series (TOPCon / N-type) rated at 415–440 Wp with higher efficiency. PERC technology exhibits higher LID (Light-Induced Degradation) rates and a worse temperature coefficient than N-type TOPCon, which over a 25-year horizon translates to meaningfully lower cumulative energy yield. Buyers commissioning a new system in 2026 may want to consider the TOPCon series as the same brand in a newer generation. ## About this series The Heliene 108HC M10 SL All Black series consists of monocrystalline modules with a **108 half-cut cells** arrangement, designed to effectively minimize losses within the module and operate more reliably under partial shading. The use of **M10 PERC** technology cells supports high efficiency and predictable energy production in typical Polish installation conditions. A key feature is the **split junction box**, which helps to better distribute current within the panel and reduce losses compared to traditional solutions. In practice, this series addresses two common problems faced by investors: reduced energy yield under suboptimal conditions and mechanical requirements for roofs and wind/snow zones. The modules feature solar glass with an **anti-reflective coating**, which supports operation over a wider range of light incidence angles throughout the day. This is a good choice for residential and commercial installations where aesthetics and **PID resistance**, as well as long-term parameter stability, are important. ## Notable figures - At 20.2% efficiency, this panel is 0.8pp above typical \*\*PERC 0-400W\*\* modules (median: 19.4%) - Power density of 202.3 W/m² packs 7.9 W/m² more into the same footprint vs \*\*PERC 0-400W\*\* median (194.4 W/m²) - At -0.34%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - Weight of 21.5 kg is typical for \*\*PERC 0-400W\*\* panels - In the top 85% for efficiency among all PERC panels ## Questions ### What warranty does the Heliene 108HC M10 SL All Black come with? The Heliene 108HC M10 SL All Black series includes a 25-year product warranty and a 25-year linear power output warranty. Heliene, a Tier 1 Canadian manufacturer, guarantees that the module will retain a specified percentage of its rated power throughout that period. This is one of the longer warranty standards in the PERC monocrystalline module category, providing a predictable return on investment over the system's lifetime. ### How does the Heliene 108HC M10 SL All Black 400W perform under partial shading? The series performs well under partial shading conditions. The 108 half-cut cell layout divides the module's electrical string into two independent sections, so shading on one part of the roof does not fully block the entire panel's output. The split junction box further reduces resistive and thermal losses, improving energy yield in real-world conditions where ideal irradiance is not always available. ### What does M10 PERC technology mean in the Heliene 108HC series and why does it matter? M10 refers to the 182×182 mm cell format, which maximizes the active surface area within a compact module footprint. PERC (Passivated Emitter and Rear Cell) adds a passivation layer on the rear of each cell, reflecting unabsorbed photons back into the active region to boost conversion efficiency. Together, these technologies deliver up to 400 W of rated power and high module efficiency, making this series a solid choice for both residential and commercial PV systems. ### Is the Heliene 108HC M10 SL All Black suitable for harsh weather conditions, including heavy snow loads? Yes. The reinforced aluminum frame is engineered to handle high mechanical loads from snow accumulation and wind pressure. The tempered solar glass with an anti-reflective coating also supports performance at low solar angles, which is relevant during winter months in northern climates. These features make the module well-suited for regions with demanding wind and snow zone requirements. ### Who is the Heliene 108HC M10 SL All Black series best suited for — is it a good fit for a residential rooftop? The series is well-suited for both residential and commercial installations. The all-black aesthetic — black cells, black frame, and black backsheet — is particularly popular on visible rooftops where a uniform appearance matters. With up to 400 W per module, you can build a high-output system even on a limited roof area. PID resistance ensures stable electrical parameters across the full 25-year operating life. ### Is the Heliene 108HC M10 SL All Black a bifacial module? No, the 108HC M10 SL All Black is a monofacial module, meaning energy is harvested only from the front side of the panel. This is a deliberate design choice for rooftop installations where the rear of the module has no access to reflected irradiance. The opaque black backsheet reinforces the all-black aesthetic and keeps module weight lower compared to bifacial glass-glass variants. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/hspe-108hc-m10-sl-monofacial-blk-rev-07-518d2fc270a4.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | Cooler, +2.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +2.8 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, +2.8 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, +2.8 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, +2.8 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, +2.8 pp, +5 yr warranty | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | Cooler, +2.7 pp, +5 yr warranty | | [Luxor Solar LX-440M/182-108+](https://comparepv.com/panel/luxor-solar-lx-440m-182-108) | 440 W | +45 W, cooler, +2.7 pp | | [Heliene 108HC-380 M10 SL All Black (Monofacial)](https://comparepv.com/panel/heliene-108hc-380-m10-sl-all-black-monofacial) | 380 W | -15 W, -0.7 pp | | [Heliene 108HC-385 M10 SL All Black (Monofacial)](https://comparepv.com/panel/heliene-108hc-385-m10-sl-all-black-monofacial) | 385 W | -10 W, -0.5 pp | | [Heliene 108HC-390 M10 SL S1 All Black](https://comparepv.com/panel/heliene-108hc-390-m10-sl-s1-all-black) | 390 W | Very close match | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +115 W, cooler, +4.8 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +100 W, cooler, +4.6 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +110 W, cooler, +4.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +95 W, cooler, +4.3 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +105 W, cooler, +4.3 pp | --- Source: https://comparepv.com/panel/heliene-108hc-395-m10-sl-all-black-monofacial Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.