--- title: "Solarspace SS8-72HD-535M 535W Solar Panel - Specs & Review | ComparePV" description: "Solarspace SS8-72HD-535M 535W solar panel. Specs: 20.71% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solarspace-ss8-72hd-535m" updated: 2026-09-11 --- # Solarspace SS8-72HD-535M Strong in heat, no clear weak spot 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** Solarspace - **Model:** SS8-72HD-535M - **Series:** SS8-72HD 535-560M (Lumina I) - **Rated power:** 535 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 535 W | 535 W | Typical | | | Module efficiency | 20.71% | 20.90% | Typical | 10,721 | | Power density | 207.1 | 209.0 | Typical | 10,764 | | Temperature coefficient | -0.334 | -0.350 | Strong - top 12% | 8,747 | | Weight (kg) | 31.2 kg | 28.4 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.71% | 20.90% | Typical | 10,721 | | Power density | 207.1 | 209.0 | Typical | 10,764 | | Temperature coefficient | -0.334 | -0.350 | Strong - top 12% | 8,747 | | Weight per kWp | 58.3 | 53.0 | Typical | 11,653 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.334 %/°C temperature coefficient** - Top 12% of the PERC 500-550 W segment, against a median of -0.350. - **Best for:** Commercial, utility-scale and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 535 W - **Efficiency:** 20.71 % - **Voltage at Pmax (Vmp):** 41.46 V - **Current at Pmax (Imp):** 12.90 A - **Open-circuit voltage (Voc):** 49.44 V - **Short-circuit current (Isc):** 13.78 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.334 %/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:** 144 - **Bifacial:** yes ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 31.2 kg - **Area:** 2.58 m2 - **Power density:** 207.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 454 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10721 of 14005 | | Power density | 10764 of 14005 | | Temperature coefficient | 8747 of 14005 | | Weight | 11653 of 14005 | | Warranty | 21 of 14005 | ## About this series The Solarspace SS8-72HD 535-560M (Lumina I) series are modules designed to maximize energy yield under real-world operating conditions, particularly where stability of production and the cost-effectiveness of installations over the long term are crucial. The use of **bifacial construction** allows for efficient use of light reflected from the ground, resulting in better performance on ground surfaces, flat roofs, and in installations with bright surfaces. Thanks to **half-cut cells**, the modules minimize losses under partial shading and better handle microcracks, which increases their reliability. Another key feature is the **multi-busbar design** and the dense arrangement of cells, which support higher efficiency and better performance in less sunny conditions. Double glass and a robust frame provide **greater mechanical strength** and durability in harsher weather conditions. This makes it a good choice for PV farms, commercial installations, and large rooftop systems, where energy yield, durability, and predictable production are key. ## Notable figures - Efficiency of 20.7% matches the \*\*PERC 500-550W\*\* median - Power density of 207.1 W/m² matches the \*\*PERC 500-550W\*\* median - Temperature coefficient of -0.33%/°C matches the \*\*PERC 500-550W\*\* median - At 31.2 kg (2.8 kg above \*\*PERC 500-550W\*\* median of 28.4 kg), requires checking roof load capacity - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces ## Questions ### Is the Solarspace SS8-72HD 535-560M (Lumina I) series still available for purchase? The Lumina I series has been discontinued and is no longer actively offered by the manufacturer. If you need a comparable solution, the successor Lumina II (SS8-72HD 565-585N) based on TOPCon cells is worth considering — it delivers higher efficiency while retaining the same dual-glass bifacial design philosophy. ### What warranty does Solarspace offer on the SS8-72HD 535-560M (Lumina I) panels? Solarspace provides a 12-year product warranty covering manufacturing defects and materials, plus a 30-year linear power warranty guaranteeing at least 84.95% of rated output after three decades. For commercial installations and utility-scale PV plants, this provides a strong basis for long-term ROI calculations. ### What does bifacial mean and does it actually increase energy yield on the Lumina I? A bifacial module harvests solar energy from both the front glass and the rear glass, capturing light reflected from the ground or rooftop surface. On the Lumina I with its dual-glass construction, the gain is most pronounced on ground-mounted systems, flat roofs with light-colored membranes, or elevated racking. Depending on surface albedo, real-world yield bonuses typically range from 5 to 15 percent. ### Does the Solarspace SS8-72HD 560M handle partial shading well — for example near a chimney or dormer? Yes. The 144 half-cut PERC cells reduce the impact of shading — when one half of a cell is shaded, the other half continues producing power independently. Combined with a multi-busbar layout, resistive losses are significantly lower than in conventional full-cell modules. This makes Lumina I a practical choice for rooftop installations with obstructions. ### Is Solarspace a reputable manufacturer — can it be trusted for a large-scale installation? Solarspace holds Tier 1 status according to Bloomberg NEF, meaning banks finance projects using their modules without additional manufacturer verification. The company is headquartered in China and has an established track record in utility-scale and commercial PV segments. IEC certifications and a 30-year power warranty reflect the manufacturer's long-term commitment. ### What is the peak power output of the Solarspace Lumina I and is it sufficient for a commercial system? The top variant in the series reaches 560 Wp at up to 21.68% module efficiency. For commercial rooftops and PV farms, these are competitive figures — the 2278×1134 mm footprint delivers high power density per square meter. With snow load tolerance up to 5400 Pa and wind resistance up to 2400 Pa, the module is well-suited to demanding climatic conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ss8-72hd-m-f4add8ce3c1f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +4.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +4.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.8 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.8 pp | | [Solarspace SS8-72HD-540M](https://comparepv.com/panel/solarspace-ss8-72hd-540m) | 540 W | Very close match | | [Solarspace SS8-72HD-545M](https://comparepv.com/panel/solarspace-ss8-72hd-545m) | 545 W | +10 W, +0.4 pp | | [Solarspace SS8-72HD-550M](https://comparepv.com/panel/solarspace-ss8-72hd-550m) | 550 W | +15 W, +0.6 pp | | [Solarspace SS8-72HD-555M](https://comparepv.com/panel/solarspace-ss8-72hd-555m) | 555 W | +20 W, +0.8 pp | | [Solarspace SS8-72HD-560M](https://comparepv.com/panel/solarspace-ss8-72hd-560m) | 560 W | +25 W, +1.0 pp | | [Solarspace SS8-72HD-565N](https://comparepv.com/panel/solarspace-ss8-72hd-565n) | 565 W | +30 W, cooler, +1.2 pp | | [Solarspace SS8-72HD-570N](https://comparepv.com/panel/solarspace-ss8-72hd-570n) | 570 W | +35 W, cooler, +1.4 pp | | [Solarspace SS8-72HD-575N](https://comparepv.com/panel/solarspace-ss8-72hd-575n) | 575 W | +40 W, cooler, +1.6 pp | | [Solarspace SS8-72HD-580N](https://comparepv.com/panel/solarspace-ss8-72hd-580n) | 580 W | +45 W, cooler, +1.7 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +115 W, cooler, +4.5 pp | --- Source: https://comparepv.com/panel/solarspace-ss8-72hd-535m Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.