--- title: "ZNShine ZXM7-SHLDD144-555 555W Solar Panel - Specs & Review | ComparePV" description: "ZNShine ZXM7-SHLDD144-555 555W solar panel. Specs: 21.48% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/znshine-zxm7-shldd144-555" updated: 2026-09-11 --- # ZNShine ZXM7-SHLDD144-555 Warranty pick, no clear weak spot 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** ZNShine - **Model:** ZXM7-SHLDD144-555 - **Series:** ZXM7-SHLDD144 Series - **Rated power:** 555 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 555 W | 560 W | Typical | | | Module efficiency | 21.48% | 21.29% | Typical | 8,152 | | Power density | 214.8 | 212.9 | Typical | 8,148 | | 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 | 21.48% | 21.29% | Typical | 8,152 | | Power density | 214.8 | 212.9 | Typical | 8,148 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 56.8 | 52.7 | Typical | 10,838 | | 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:** Commercial, utility-scale and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 555 W - **Efficiency:** 21.48 % - **Voltage at Pmax (Vmp):** 42.10 V - **Current at Pmax (Imp):** 13.19 A - **Open-circuit voltage (Voc):** 50.40 V - **Short-circuit current (Isc):** 13.95 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 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2279 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 31.5 kg - **Area:** 2.58 m2 - **Power density:** 214.8 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:** 471 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8152 of 14005 | | Power density | 8148 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 10838 of 14005 | | Warranty | 21 of 14005 | ## About this series The ZNShine ZXM7-SHLDD144 series is designed for maximum yield in real-world operating conditions-including when the installation experiences periodic shading or operates under reduced sunlight. By combining half-cut technology and a multi-string structure, current flows through shorter paths, resulting in more stable module performance and reduced energy losses. A key advantage is the **bifacial structure**, which harnesses reflected light from the ground, effectively boosting energy production without expanding the installation. Additionally, the **glass-glass** construction improves resistance to atmospheric conditions and minimizes the risk of micro-cracks, crucial for projects focused on long-term operation. In practice, **enhanced PID resistance** protects performance in challenging environments. This is the choice for utility-scale PV farms, commercial and ground-mounted installations, where **higher yield** and predictable performance over years is key. ## Notable figures - At 21.5% efficiency, this panel is on par with typical \*\*PERC 550-600W\*\* modules - At 214.8 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 - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces - #8152 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### What is the maximum power output of the ZNShine ZXM7-SHLDD144 panel and which installations does it suit best? The ZXM7-SHLDD144 series reaches up to 555 Wp of maximum power. This high per-panel output makes it well suited for commercial installations, PV farms, and large ground-mount systems, where fewer panels mean less mounting structure, faster installation, and lower cabling costs per watt of installed capacity. ### How does the bifacial design of this series differ from standard monofacial panels? Bifacial ZXM7-SHLDD144 modules generate energy from both sides - the front collects direct sunlight while the rear captures light reflected from the ground, roof, or surrounding surfaces. Depending on surface albedo and mounting height, this can add anywhere from a few to over ten percent extra energy yield without increasing the installation's footprint. ### What warranty comes with ZNShine ZXM7-SHLDD144 panels? The manufacturer provides a 12-year product warranty and a 30-year power performance warranty. This covers both material and workmanship defects as well as gradual power degradation over time, which is an important factor when calculating the long-term return on investment over several decades of operation. ### Does the glass-glass construction in this series mean extra weight and a harder installation? Glass-glass construction is somewhat heavier than standard glass-backsheet panels, but in return it delivers significantly higher mechanical strength, better cell protection against moisture and microcracks, and a longer module lifespan. For installations built for decades of reliable operation, this weight trade-off is well justified, especially in commercial projects and PV farms. ### What does the enhanced PID resistance provide in the ZXM7-SHLDD144 panels? PID (Potential Induced Degradation) resistance protects the module from power losses caused by voltage differences between the cells and the frame or grounding, a common issue in large installations with high system voltage. This feature keeps performance stable even in humid climates and with long strings, which is typical for commercial installations and PV farms. ### What cell technology does the ZXM7-SHLDD144 series use, and how does it differ from TOPCon? The series uses proven PERC cell technology in a half-cut, multi-busbar layout, which shortens current paths and reduces resistive losses as well as the impact of partial shading. Compared to newer TOPCon technology, PERC offers slightly lower base efficiency but is a mature technology with proven durability and lower production cost, resulting in a more competitive module price. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ZXM7-SHLDD144-182-2279-1134-30-32NH-530-555W-350mm-20220823-5c6bb1bf9f3a.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.5 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.1 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, 15 kg lighter, +2.9 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | Cooler, lighter, +2.9 pp | | [ZNShine ZXM7-SHW144-520](https://comparepv.com/panel/znshine-zxm7-shw144-520) | 520 W | 18 kg lighter, -1.2 pp, -5 yr warranty | | [ZNShine ZXM7-SHW144-525](https://comparepv.com/panel/znshine-zxm7-shw144-525) | 525 W | 18 kg lighter, -1.0 pp, -5 yr warranty | | [ZNShine ZXM7-SHW144-530](https://comparepv.com/panel/znshine-zxm7-shw144-530) | 530 W | 18 kg lighter, -0.8 pp, -5 yr warranty | | [ZNShine ZXM7-SHLD144-530W](https://comparepv.com/panel/znshine-zxm7-shld144-530w) | 530 W | -25 W, -1.0 pp | | [ZNShine ZXM7-SHW144-535](https://comparepv.com/panel/znshine-zxm7-shw144-535) | 535 W | 18 kg lighter, -0.6 pp, -5 yr warranty | | [ZNShine ZXM7-SHLD144-535W](https://comparepv.com/panel/znshine-zxm7-shld144-535w) | 535 W | -20 W, -0.8 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +95 W, cooler, +3.7 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +90 W, cooler, +3.5 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +85 W, cooler, +3.3 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +80 W, cooler, +3.1 pp | --- Source: https://comparepv.com/panel/znshine-zxm7-shldd144-555 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.