--- title: "Solarspace SS8-54HSB-405M 405W Solar Panel - Specs & Review | ComparePV" description: "Solarspace SS8-54HSB-405M 405W solar panel. Specs: 20.74% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solarspace-ss8-54hsb-405m" updated: 2026-09-11 --- # Solarspace SS8-54HSB-405M Strong in heat, no clear weak spot 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Solarspace - **Model:** SS8-54HSB-405M - **Series:** Lumina I / SS8-54HSB 395–405M (All Black Module) - **Rated power:** 405 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 405 W | 410 W | Typical | | | Module efficiency | 20.74% | 20.60% | Typical | 10,645 | | Power density | 207.4 | 206.2 | Typical | 10,626 | | Temperature coefficient | -0.335 | -0.350 | Strong - top 14% | 8,753 | | Weight (kg) | 21.0 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.74% | 20.60% | Typical | 10,645 | | Power density | 207.4 | 206.2 | Typical | 10,626 | | Temperature coefficient | -0.335 | -0.350 | Strong - top 14% | 8,753 | | Weight per kWp | 51.9 | 53.0 | Typical | 5,230 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.335 %/°C temperature coefficient** - Top 14% of the PERC 400-450 W segment, against a median of -0.350. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 405 W - **Efficiency:** 20.74 % - **Voltage at Pmax (Vmp):** 31.21 V - **Current at Pmax (Imp):** 12.98 A - **Open-circuit voltage (Voc):** 37.23 V - **Short-circuit current (Isc):** 13.87 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.335 %/degC - **Temperature coefficient of Voc:** -0.265 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.0 kg - **Area:** 1.95 m2 - **Power density:** 207.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 332 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10645 of 14005 | | Power density | 10626 of 14005 | | Temperature coefficient | 8753 of 14005 | | Weight | 5230 of 14005 | | Warranty | 9798 of 14005 | ## About this series The Solarspace Lumina I SS8-54HSB 395-405M (All Black) series is a range of modules designed for installations where both aesthetics and long-term stable energy production are important. These modules feature **monocrystalline mono PERC p-type** cells in a **half-cut** configuration, which improves performance under partial shading and reduces the risk of hot spots. The design with **multiple busbars (MBB)** and **high-density laminating** supports better current collection and higher resistance to microcracks, which is especially important on roofs exposed to wind and snow loads. The All Black version provides a consistent, dark surface - a real advantage where the installation needs to be discreet and aesthetically pleasing. These panels are suitable for single-family homes, premium investments, and on the roofs of small to medium-sized commercial buildings, where you need a **compact module with high power density** without compromising on durability and appearance. ## Notable figures - At 20.7% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - At 207.4 W/m² power density, roof space requirements are typical for \*\*PERC 400-450W\*\* panels - At -0.34%/°C, hot weather performance is typical for \*\*PERC 400-450W\*\* panels - At 21.0 kg, weight matches the \*\*PERC 400-450W\*\* median - #10645 for efficiency, #8753 for temperature performance out of 14005 panels ## Questions ### What warranty does the Solarspace Lumina I SS8-54HSB 395–405M come with? Solarspace provides a 25-year product warranty and a 25-year linear power warranty. Per the datasheet, the module retains at least 84.8% of its rated output at year 25. Annual degradation is capped at ≤0.55%, ensuring stable energy production throughout the full service life of the installation. ### Do the Solarspace Lumina I All Black panels handle partial shading from a chimney or dormer? Yes. The Lumina I series uses 108 half-cut PERC cells — each cell is split in two, so shading one section does not shut down the rest of the string. The multi-busbar (MBB) design further improves current collection and reduces hot spot risk, which is common under non-uniform irradiance on obstructed rooftops. ### What are the dimensions and weight of the Solarspace Lumina I 405W module — will it fit on a standard pitched roof? The module measures 1722×1134×30 mm and weighs approximately 21 kg (46 lbs). This compact footprint simplifies rooftop transport and installation on standard aluminum or steel racking systems. The size suits both smaller pitched roofs on single-family homes and larger commercial rooftops equally well. ### What wind and snow loads can the Solarspace Lumina I SS8-54HSB withstand? The panel is rated for 5,400 Pa front load, covering extreme snow and wind scenarios, and 2,400 Pa rear load. High-density lamination combined with the MBB busbar architecture reduces the risk of cell microcracks, which most often develop under repeated mechanical stress from wind and snow cycles over the module's lifetime. ### What sets the All Black version of the Solarspace Lumina I apart from standard solar modules? The All Black version features a uniformly black frame, backsheet, and cells, delivering a visually seamless appearance on the roof. This matters for premium residential projects or heritage-zone installations where aesthetics are a requirement. Core specs — up to 405 Wp output, up to 20.74% efficiency, mono PERC half-cut cells — remain unchanged from the standard version. ### What types of installations are the Solarspace Lumina I SS8-54HSB 395–405M modules best suited for? The Lumina I series targets single-family homes, premium residential projects, and small-to-medium commercial buildings. At 405 Wp per panel, a 10 kWp system requires only 25 modules. The combination of compact dimensions, all-black aesthetics, and mono PERC half-cut technology makes it a strong choice wherever high power density, durability, and visual appeal all matter. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ss8-54hsb-m-1-21f16cacc34b.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-455-MAH54Db](https://comparepv.com/panel/aiko-aiko-455-mah54db) | 455 W | +50 W, cooler, +2.6 pp | | [Longi Solar LR5-54HTH-455M](https://comparepv.com/panel/longi-lr5-54hth-455m) | 455 W | +50 W, cooler, +2.6 pp | | [Yingli YL455CF54 e/2](https://comparepv.com/panel/yingli-yl455cf54-e-2) | 455 W | +50 W, +2.6 pp, +5 yr warranty | | [Einnova Solarline ESM-455T](https://comparepv.com/panel/einnova-solarline-esm-455t) | 455 W | +50 W, +2.6 pp, +5 yr warranty | | [SunEvo Solar SE5-54HBC-455W](https://comparepv.com/panel/sunevo-solar-se5-54hbc-455w) | 455 W | +50 W, cooler, +2.6 pp | | [Just Solar JST-EDMH-(445-465)W-TD (455W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-455w-class) | 455 W | +50 W, +2.6 pp, +5 yr warranty | | [Luxor Solar LX-455M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-455m-182r-96-gg) | 455 W | +50 W, cooler, +2.6 pp | | [Solarspace SS8-54HSB-395M](https://comparepv.com/panel/solarspace-ss8-54hsb-395m) | 395 W | -10 W, -0.5 pp | | [Solarspace SS8-54HSB-400M](https://comparepv.com/panel/solarspace-ss8-54hsb-400m) | 400 W | -0.3 pp | | [Solarspace SS8-54HSB-410M](https://comparepv.com/panel/solarspace-ss8-54hsb-410m) | 410 W | +0.3 pp | | [Solarspace SS8-54HSB-415M](https://comparepv.com/panel/solarspace-ss8-54hsb-415m) | 415 W | +10 W, +0.5 pp | | [Solarspace SS8-54HSB-420M](https://comparepv.com/panel/solarspace-ss8-54hsb-420m) | 420 W | +15 W, +0.8 pp | | [Solarspace SS8-54HD-425N](https://comparepv.com/panel/solarspace-ss8-54hd-425n) | 425 W | Cooler, +1.0 pp, +5 yr warranty | | [Solarspace SS8-54HD-430N](https://comparepv.com/panel/solarspace-ss8-54hd-430n) | 430 W | Cooler, +1.3 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +105 W, cooler, +4.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +90 W, cooler, +4.1 pp | --- Source: https://comparepv.com/panel/solarspace-ss8-54hsb-405m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.