--- title: "Heliene 108HC-385 M10 SL 385W Solar Panel - Specs & Review | ComparePV" description: "Heliene 108HC-385 M10 SL 385W solar panel. Specs: 19.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/heliene-108hc-385-m10-sl" updated: 2026-09-11 --- # Heliene 108HC-385 M10 SL Strong in heat, no clear weak spot 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Heliene - **Model:** 108HC-385 M10 SL - **Series:** 108HC M10 SL All Black - **Rated power:** 385 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) | 385 W | 380 W | Typical | | | Module efficiency | 19.70% | 19.90% | Typical | 12,511 | | Power density | 197.2 | 199.0 | Typical | 12,493 | | 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 | 19.70% | 19.90% | Typical | 12,511 | | Power density | 197.2 | 199.0 | Typical | 12,493 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,778 | | Weight per kWp | 55.8 | 55.8 | Typical | 10,230 | | 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 and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 385 W - **Efficiency:** 19.70 % - **Voltage at Pmax (Vmp):** 30.85 V - **Current at Pmax (Imp):** 12.48 A - **Open-circuit voltage (Voc):** 36.95 V - **Short-circuit current (Isc):** 13.24 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:** 197.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 86.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 321 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12511 of 14005 | | Power density | 12493 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 10230 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Half-cut mono PERC cells** - The 108 half-cut monocrystalline PERC cells reduce resistive losses and improve partial shading performance (chimneys, antennas, neighboring buildings) compared to full-size cell panels. - **BNEF Tier-1 manufacturer** - Heliene is the only North American module manufacturer listed as Tier-1 by Bloomberg New Energy Finance, with factories in Ontario and Minnesota, improving project bankability and supply chain stability. - **25-year product and power warranty** - The manufacturer offers a full 25-year product warranty alongside the 25-year power performance warranty - significantly longer than the typical 10-12 year product warranty offered by many residential-segment competitors. - **All Black aesthetic for residential roofs** - The fully black frame, backsheet, and interconnect ribbons allow visual matching with any roof covering, an important selling point for single-family home installations where facade aesthetics matter to the investor. - **Higher efficiency than some mono/PERC peers** - Efficiency of 19.5-20.5% exceeds comparable modules such as MWG Mono (19.32%) and DMEGC GH400M10T-B48HST (15.48%) at the same 400 Wp maximum power. ## Cons - **Lower efficiency than HJT modules** - Efficiency of 19.5-20.5% is clearly below Meyer Burger White (21.7%), which uses heterojunction (HJT) technology, meaning lower energy yield from the same roof area where mounting space is limited. - **PERC technology, not N-type** - The series is built on older PERC technology, while Heliene already offers N-type (NTYP) variants rated 415-440W with lower LID degradation and better high-temperature performance - buyers seeking the latest technology have a stronger in-brand alternative. - **No bifacial variant** - The module is monofacial only, excluding additional energy gain from rear-side albedo reflection - an option available in competing series and particularly useful for ground-mount installations or bright flat roofs. ## About this series The 108HC M10 SL All Black series from Heliene is a solar module built for residential installations, where roof aesthetics matter just as much as performance. The panel uses **half-cut monocrystalline PERC cells**, which lowers resistive losses and helps the module handle partial shading better, for example from chimneys, antennas, or neighboring buildings. The fully black color scheme of the frame, backsheet, and interconnect ribbons lets the panel blend visually with virtually any roof covering, an important advantage on single-family homes where the investor cares about the facade's look just as much as the electrical specs. The construction relies on **3.2mm tempered front glass** and a reinforced aluminum frame, delivering high resistance to hail, snow load, and strong wind, and therefore durability under the demanding weather conditions typical of the Polish climate. The SL All Black series works equally well for new installations and retrofit projects, where the priority is a combination of **high efficiency**, aesthetics, and long-term reliability backed by international ISO9001 quality standards. ## Notable figures - At 19.7% efficiency, this panel is on par with typical \*\*PERC 0-400W\*\* modules - Power density of 197.2 W/m² matches the \*\*PERC 0-400W\*\* median - Temperature coefficient of -0.34%/°C matches the \*\*PERC 0-400W\*\* median - At 21.5 kg, weight matches the \*\*PERC 0-400W\*\* median - Ranked #12511 out of 14005 panels for efficiency in the database ## Questions ### Is the Heliene 108HC M10 SL All Black panel suitable for a residential roof where the installation is visible? Yes, that is one of this series' main design goals. The fully black frame, backsheet, and interconnect ribbons give the module a uniform, sleek appearance without contrasting white elements. It is a popular choice for front-facing elevations and street-visible roofs, where aesthetics matter as much as electrical performance. ### What warranty comes with Heliene 108HC M10 SL All Black modules? The manufacturer offers a 25-year product warranty and a 25-year power performance warranty, among the longest terms currently available on the market. Heliene is a Canada-based tier-1 manufacturer operating under ISO9001 certification, which adds further confidence in long-term warranty support. ### How do half-cut PERC cells in this series differ from standard full-size cells? Half-cut cells are split in half, so the current flowing through each cell is lower, reducing resistive losses and improving module efficiency. This design also handles partial shading better — for example from a chimney or antenna — since shading on one half of the panel has a smaller impact on overall energy output. ### What is the power output of the Heliene 108HC M10 SL All Black, and how many panels are needed for a typical 5 kWp system? Panels in this series reach up to 400 Wp. Building a system of roughly 5 kWp typically requires around 12-13 modules, depending on the exact power variant chosen from the series and project-specific factors such as available roof area. ### Can the 108HC M10 SL All Black panels withstand hail and heavy snow loads? Yes, the module uses 3.2 mm tempered front glass and a reinforced aluminum frame engineered for higher mechanical loads. This construction improves resistance to hail, strong wind, and snow pressure, making it a suitable choice for climates with significant seasonal weather variation, such as Poland's. ### Is the 108HC M10 SL All Black series a bifacial panel? No, it is a monofacial module, generating power only from the front side. For many residential roof installations this is sufficient and more cost-effective than bifacial panels, since a typical roof mount doesn't allow the rear side to capture meaningful additional light anyway. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HSPE_108HC_M10_SL_Monofacial_Blk_Rev07-478d75291717.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +3.3 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +3.3 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, +3.3 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, +3.3 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, +3.3 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, +3.3 pp, +5 yr warranty | | [Luxor Solar LX-435M/182-108+ GG](https://comparepv.com/panel/luxor-solar-lx-435m-182-108-gg-1) | 435 W | +50 W, cooler, +3.1 pp | | [Jetion JT435SYk(B)](https://comparepv.com/panel/jetion-jt435syk-b) | 435 W | +50 W, cooler, +3.0 pp | | [Maxeon SPR-MAX3-430-R](https://comparepv.com/panel/maxeon-spr-max3-430-r) | 430 W | Cooler, +3.0 pp, +15 yr warranty | | [Luxor Solar LX-435M/182-108+](https://comparepv.com/panel/luxor-solar-lx-435m-182-108) | 435 W | +50 W, cooler, +2.9 pp | | [Heliene 108HC-380 M10 SL All Black (Monofacial)](https://comparepv.com/panel/heliene-108hc-380-m10-sl-all-black-monofacial) | 380 W | Very close match | | [Heliene 108HC-390 M10 SL S1 All Black](https://comparepv.com/panel/heliene-108hc-390-m10-sl-s1-all-black) | 390 W | +0.3 pp | | [Heliene 108HC-395 M10 SL All Black (Monofacial)](https://comparepv.com/panel/heliene-108hc-395-m10-sl-all-black-monofacial) | 395 W | +10 W, +0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +125 W, cooler, +5.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +110 W, cooler, +5.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +120 W, cooler, +5.0 pp | --- Source: https://comparepv.com/panel/heliene-108hc-385-m10-sl Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.