--- title: "Longi Solar LR5-72HTH-570M vs Longi Solar LR5-72HTH-585M - Solar Panel Comparison | ComparePV" description: "Compare Longi Solar LR5-72HTH-570M vs Longi Solar LR5-72HTH-585M side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr5-72hth-585m" image: "https://comparepv.com/og/compare/panels/longi-lr5-72hth-570m/longi-lr5-72hth-585m.png" updated: 2026-09-11 --- # Longi Solar LR5-72HTH-570M vs Longi Solar LR5-72HTH-585M 585M leads on the differences that matter The largest is module efficiency: 0.50 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Longi Solar LR5-72HTH-570M](https://comparepv.com/panel/longi-lr5-72hth-570m) | [Longi Solar LR5-72HTH-585M](https://comparepv.com/panel/longi-lr5-72hth-585m) | | Manufacturer | Longi Solar | Longi Solar | | Power | 570 Wp | 585 Wp | | Efficiency | 22.10 % | 22.60 % | | Technology | | | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 570M | 585M | Difference | | --- | --- | --- | --- | | Module efficiency | 22.10 % | 22.60 % | +0.50 pp for 585M | | Power density | 220.7 Wp/m² | 226.5 Wp/m² | +5.8 Wp/m² for 585M | | Rated power | 570 Wp | 585 Wp | +15 W for 585M | ## Every compared parameter | Parameter | 570M | 585M | | --- | --- | --- | | Rated power | 570 Wp | 585 Wp | | Module efficiency | 22.10 % | 22.60 % | | Power density | 220.7 Wp/m² | 226.5 Wp/m² | | Open-circuit voltage | 51.91 V | 52.36 V | | Voltage at max power | 43.76 V | 44.21 V | | Short-circuit current | 14.07 A | 14.27 A | | Current at max power | 13.03 A | 13.24 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2278x1134x30 mm | 2278x1134x30 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 27.2 kg | 27.2 kg | | Weight per kWp | 47.7 kg/kWp | 46.5 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 25 yrs | 25 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | - | - | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, 570M:** 19,022 kWh - **Cumulative output, 585M:** 19,523 kWh - **Gap:** 501 kWh ## Output when hot | Condition | Cell temperature | 570M | 585M | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 570 W | 585 W | 100.0% of rated power | | Cool, bright day | 40 °C | 545 W | 560 W | 95.7% of rated power | | Typical summer roof | 55 °C | 520 W | 534 W | 91.3% of rated power | | Hot roof | 70 °C | 496 W | 509 W | 87.0% of rated power | ## Against the whole database | Measure | 570M | 585M | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #6,076 | #3,716 | 14,129 | 585M leads by 2,360 places | | Power density | #6,121 | #3,557 | 14,129 | 585M leads by 2,564 places | | Heat behaviour | #2,220 | #2,220 | 14,129 | Tied - the same position in the database | | Weight | #1,826 | #1,186 | 14,129 | 585M leads by 640 places | | Warranty | #9,912 | #9,912 | 14,129 | Tied - the same position in the database | | Overall | #5,620 | #4,515 | 14,129 | 585M leads by 1,105 places | ## Questions ### Which panel is better: Longi Solar LR5-72HTH-570M or Longi Solar LR5-72HTH-585M? According to our database: **Longi Solar LR5-72HTH-585M** has higher module efficiency (**22.60%** vs **22.10%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Longi Solar LR5-72HTH-570M and Longi Solar LR5-72HTH-585M? **Longi Solar LR5-72HTH-570M** has a module efficiency of **22.10%**, while **Longi Solar LR5-72HTH-585M** is **22.60%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Longi Solar LR5-72HTH-570M use vs Longi Solar LR5-72HTH-585M? **Longi Solar LR5-72HTH-570M** uses Monocrystalline cells; **Longi Solar LR5-72HTH-585M** uses Monocrystalline. 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 Longi Solar LR5-72HTH-570M and Longi Solar LR5-72HTH-585M? **Longi Solar LR5-72HTH-570M** has a **25 years** power warranty; **Longi Solar LR5-72HTH-585M** 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 - [Longi Solar LR5-72HTH-570M vs Longi Solar LR5-72HTH-580M](https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr5-72hth-580m) - 3 differences, the largest is module efficiency - [Longi Solar LR5-72HTH-570M vs Longi Solar LR5-72HTH-575M](https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr5-72hth-575m) - One difference: module efficiency - [Longi Solar LR5-72HTH-570M vs Longi Solar LR5-72HTH-565M](https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr5-72hth-565m) - One difference: module efficiency - [Longi Solar LR5-72HTH-570M vs Longi Solar LR7-72HVHF-670M](https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr7-72hvhf-670m) - 14 differences, the largest is module efficiency - [Longi Solar LR5-72HTH-570M vs Longi Solar LR8-66HYD-670M](https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr8-66hyd-670m) - 16 differences, the largest is module efficiency - [Longi Solar LR5-72HTH-570M vs Longi Solar LR7-72HVH-670M](https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr7-72hvh-670m) - 14 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/longi-lr5-72hth-570m/longi-lr5-72hth-585m 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.