--- title: "ZNShine ZXM7-SHLD144-550 550W Solar Panel - Specs & Review | ComparePV" description: "ZNShine ZXM7-SHLD144-550 550W solar panel. Specs: 21.28% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/znshine-zxm7-shld144-550" updated: 2026-09-11 --- # ZNShine ZXM7-SHLD144-550 Warranty pick, no clear weak spot 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** ZNShine - **Model:** ZXM7-SHLD144-550 - **Series:** ZXM7-SHLD144 Series - **Rated power:** 550 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 550 W | 560 W | Weak - bottom 15% | | | Module efficiency | 21.28% | 21.29% | Typical | 8,795 | | Power density | 212.8 | 212.9 | Typical | 8,643 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 31.5 kg | 30.8 kg | Typical | | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.28% | 21.29% | Typical | 8,795 | | Power density | 212.8 | 212.9 | Typical | 8,643 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 57.3 | 52.7 | Typical | 11,145 | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Strengths - **30 year performance warranty** - Top 25% of the PERC 550-600 W segment, against a median of 27 yrs. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 550 W - **Efficiency:** 21.28 % - **Voltage at Pmax (Vmp):** 41.80 V - **Current at Pmax (Imp):** 13.16 A - **Open-circuit voltage (Voc):** 50.10 V - **Short-circuit current (Isc):** 13.90 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2279 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 31.5 kg - **Area:** 2.58 m2 - **Power density:** 212.8 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:** 467 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8795 of 14005 | | Power density | 8643 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 11145 of 14005 | | Warranty | 21 of 14005 | ## About this series The ZNShine ZXM7-SHLD144 series is designed for high energy production in real-world operating conditions, especially where durability and stable yield matter. Its distinguishing feature is the **glass-glass construction**, which enhances the moisture barrier and supports module longevity, while also increasing safety in demanding installations. The use of **monocrystalline PERC cells** in a **half-cut configuration** helps minimize losses and improves tolerance to partial shading - crucial for rooftops with obstacles, residential and commercial installations. Additionally, the **SMBB multi-string** technology optimizes power collection from the cells, resulting in better performance under low-light conditions, such as winter or overcast days. In practice, this series addresses performance drops and degradation risks, offering a solution for rooftop, ground-mounted, and projects where long-term reliability and predictable yield over years are key. ## Notable figures - At 21.3% efficiency, this panel is on par with typical \*\*PERC 550-600W\*\* modules - At 212.8 W/m² power density, roof space requirements are typical for \*\*PERC 550-600W\*\* panels - Temperature coefficient of -0.35%/°C matches the \*\*PERC 550-600W\*\* median - Ranked #8795 out of 14005 panels for efficiency in the database ## Questions ### What is the maximum power output of the ZNShine ZXM7-SHLD144 panel and who is this series for? Modules in the ZXM7-SHLD144 series reach a maximum power of 555 Wp thanks to monocrystalline PERC cells in a half-cut configuration. This high power output means fewer panels are needed to reach a given system size, making the series suitable for residential rooftop installations as well as larger commercial and ground-mount projects where power density per square meter matters. ### How does glass-glass construction differ from a standard glass-backsheet panel? In glass-glass construction, the cells are laminated between two layers of glass instead of glass and a backsheet. This provides a better moisture barrier, greater mechanical rigidity, and lower risk of microcracks and PID degradation. As a result, the panel retains its performance longer and better withstands harsh conditions, such as heavy snow loads or high humidity. ### What warranty applies to ZNShine ZXM7-SHLD144 panels? The manufacturer provides a 12-year product warranty and a 30-year power performance warranty. This means protection against material and workmanship defects for 12 years, while a minimum guaranteed level of energy output is covered for 30 years despite the natural degradation of cells over time. ### Do ZXM7-SHLD144 panels perform well in low light conditions, such as winter? Yes, SMBB multi-busbar technology collects current more efficiently across the cell surface, improving module performance under low and diffuse light, for example in winter or on overcast days. Combined with half-cut PERC cells, this reduces energy losses and increases shading tolerance, which is common when the sun's angle is low. ### Is the ZXM7-SHLD144 series suitable for roofs with partial shading, such as from a chimney? Yes, the half-cut cell layout limits the impact of partial shading on the whole panel's output, since shading one half of a cell has less effect on the remaining sections. This is important on roofs with chimneys, dormers, or antennas, where standard panels would lose significantly more power. ### Is ZNShine a Tier 1 manufacturer, and can it be trusted for a long-term investment? Yes, ZNShine holds Tier 1 manufacturer status, reflecting financial stability and a documented production track record confirmed by independent industry rankings. This matters for the 30-year power warranty, as it increases the likelihood the company will remain operational and honor warranty claims throughout that period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ZXM7-SHLD144-182-2279-1134-30-32NH-530-555W-350mm-20220823-E-8fa1f7514a7e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.7 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.4 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.3 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.2 pp | | [ZNShine ZXM7-SHW144-520](https://comparepv.com/panel/znshine-zxm7-shw144-520) | 520 W | 18 kg lighter, -1.0 pp, -5 yr warranty | | [ZNShine ZXM7-SHW144-525](https://comparepv.com/panel/znshine-zxm7-shw144-525) | 525 W | 18 kg lighter, -0.8 pp, -5 yr warranty | | [ZNShine ZXM7-SHW144-530](https://comparepv.com/panel/znshine-zxm7-shw144-530) | 530 W | 18 kg lighter, -0.6 pp, -5 yr warranty | | [ZNShine ZXM7-SHLD144-530W](https://comparepv.com/panel/znshine-zxm7-shld144-530w) | 530 W | -20 W, -0.8 pp | | [ZNShine ZXM7-SHW144-535](https://comparepv.com/panel/znshine-zxm7-shw144-535) | 535 W | 18 kg lighter, -0.4 pp, -5 yr warranty | | [ZNShine ZXM7-SHLD144-535W](https://comparepv.com/panel/znshine-zxm7-shld144-535w) | 535 W | -15 W, -0.6 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +100 W, cooler, +3.9 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +95 W, cooler, +3.7 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +90 W, cooler, +3.5 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +85 W, cooler, +3.3 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +80 W, cooler, +3.1 pp | --- Source: https://comparepv.com/panel/znshine-zxm7-shld144-550 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.