--- title: "ZNShine ZXM7-UH156-615 vs ZNShine ZXM8-TP132-670W - Solar Panel Comparison | ComparePV" description: "Compare ZNShine ZXM7-UH156-615 vs ZNShine ZXM8-TP132-670W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm8-tp132-670w" updated: 2026-09-11 --- # ZNShine ZXM7-UH156-615 vs ZNShine ZXM8-TP132-670W ZXM7-UH156-615 leads on the differences that matter The largest is temperature coefficient: 0.040 %/°C better in heat. 5 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [ZNShine ZXM7-UH156-615](https://comparepv.com/panel/znshine-zxm7-uh156-615) | [ZNShine ZXM8-TP132-670W](https://comparepv.com/panel/znshine-zxm8-tp132-670w) | | Manufacturer | ZNShine | ZNShine | | Power | 615 Wp | 670 Wp | | Efficiency | 22.00 % | 21.57 % | | Technology | TOPCon | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | ZXM7-UH156-615 | ZXM8-TP132-670W | Difference | | --- | --- | --- | --- | | Temperature coefficient | -0.300 %/°C | -0.340 %/°C | +0.040 %/°C for ZXM7-UH156-615 | | Rated power | 615 Wp | 670 Wp | +55 W for ZXM8-TP132-670W | | Module efficiency | 22.00 % | 21.57 % | +0.43 pp for ZXM7-UH156-615 | | Weight | 30.0 kg | 33.5 kg | -3.5 kg for ZXM7-UH156-615 | | Open-circuit voltage | 55.40 V | 46.00 V | 9.40 V apart | | Short-circuit current | 14.19 A | 18.62 A | 4.43 A apart | | Module area | 2.795 m² | 3.106 m² | 0.311 m² apart | | Power density | 220.0 Wp/m² | 215.7 Wp/m² | +4.3 Wp/m² for ZXM7-UH156-615 | | Cell technology | TOPCon | PERC | TOPCon vs PERC | | Annual degradation | 0.50 %/yr | 0.55 %/yr | -0.05 %/yr for ZXM7-UH156-615 | | Voltage at max power | 45.80 V | 38.20 V | 7.60 V apart | | Current at max power | 13.43 A | 17.54 A | 4.11 A apart | | Cell count | 156 | 132 | 24 cells apart | | Dimensions | 2465x1134x35 mm | 2384x1303x35 mm | 2465x1134x35 mm vs 2384x1303x35 mm | ## Every compared parameter | Parameter | ZXM7-UH156-615 | ZXM8-TP132-670W | | --- | --- | --- | | Rated power | 615 Wp | 670 Wp | | Module efficiency | 22.00 % | 21.57 % | | Power density | 220.0 Wp/m² | 215.7 Wp/m² | | Open-circuit voltage | 55.40 V | 46.00 V | | Voltage at max power | 45.80 V | 38.20 V | | Short-circuit current | 14.19 A | 18.62 A | | Current at max power | 13.43 A | 17.54 A | | Temperature coefficient | -0.300 %/°C | -0.340 %/°C | | Dimensions | 2465x1134x35 mm | 2384x1303x35 mm | | Module area | 2.795 m² | 3.106 m² | | Weight | 30.0 kg | 33.5 kg | | Weight per kWp | 48.8 kg/kWp | 50.0 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 25 yrs | 25 yrs | | Annual degradation | 0.50 %/yr | 0.55 %/yr | | Cell technology | TOPCon | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 156 | 132 | | Bifacial | No | No | ## Thirty-year yield Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, at 1,200 kWh/kWp a year - **Cumulative output, ZXM7-UH156-615:** 20,313 kWh - **Cumulative output, ZXM8-TP132-670W:** 21,955 kWh - **Gap:** 1,642 kWh ## Output when hot | Condition | Cell temperature | ZXM7-UH156-615 | ZXM8-TP132-670W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 615 W | 670 W | 100.0% of rated power | | Cool, bright day | 40 °C | 587 W | 636 W | 94.9% of rated power | | Typical summer roof | 55 °C | 560 W | 602 W | 89.8% of rated power | | Hot roof | 70 °C | 532 W | 567 W | 84.7% of rated power | ## Against the whole database | Measure | ZXM7-UH156-615 | ZXM8-TP132-670W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #6,517 | #7,734 | 14,005 | ZXM7-UH156-615 leads by 1,217 places | | Power density | #6,655 | #7,644 | 14,005 | ZXM7-UH156-615 leads by 989 places | | Heat behaviour | #6,093 | #8,778 | 14,005 | ZXM7-UH156-615 leads by 2,685 places | | Weight | #2,460 | #3,317 | 14,005 | ZXM7-UH156-615 leads by 857 places | | Warranty | #9,798 | #9,798 | 14,005 | Tied - the same position in the database | | Overall | #4,792 | #3,392 | 14,005 | ZXM8-TP132-670W leads by 1,400 places | ## Questions ### Which panel is better: ZNShine ZXM7-UH156-615 or ZNShine ZXM8-TP132-670W? According to our database: **ZNShine ZXM7-UH156-615** has higher module efficiency (**22.00%** vs **21.57%**); **ZNShine ZXM7-UH156-615** tolerates heat better (temp coeff **-0.300%/°C** vs **-0.340%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of ZNShine ZXM7-UH156-615 and ZNShine ZXM8-TP132-670W? **ZNShine ZXM7-UH156-615** has a module efficiency of **22.00%**, while **ZNShine ZXM8-TP132-**670 W**** is **21.57%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does ZNShine ZXM7-UH156-615 use vs ZNShine ZXM8-TP132-670W? **ZNShine ZXM7-UH156-615** uses **TOPCon** cells; **ZNShine ZXM8-TP132-**670 W**** uses **PERC**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on ZNShine ZXM7-UH156-615 and ZNShine ZXM8-TP132-670W? **ZNShine ZXM7-UH156-615** has a **25 years** power warranty; **ZNShine ZXM8-TP132-**670 W**** has a **25 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ## Related comparisons - [ZNShine ZXM7-UH156-615 vs ZNShine ZXM7-UH156-630](https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm7-uh156-630) - 3 differences, the largest is module efficiency - [ZNShine ZXM7-UH156-615 vs ZNShine ZXM7-UH156-625](https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm7-uh156-625) - 3 differences, the largest is module efficiency - [ZNShine ZXM7-UH156-615 vs ZNShine ZXM7-UH156-620](https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm7-uh156-620) - The same specification on paper - [ZNShine ZXM7-UH156-615 vs ZNShine ZXM7-UH156-610](https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm7-uh156-610) - The same specification on paper - [ZNShine ZXM7-UH156-615 vs ZNShine ZXM7-UH156-605](https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm7-uh156-605) - 3 differences, the largest is module efficiency - [ZNShine ZXM7-UH156-615 vs ZNShine ZXM7-UH156-600](https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm7-uh156-600) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/znshine-zxm7-uh156-615/znshine-zxm8-tp132-670w Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.