--- title: "DMEGC DM465M10RT-B54HBW vs Longi Solar LR7-54HVB-480M - Solar Panel Comparison | ComparePV" description: "Compare DMEGC DM465M10RT-B54HBW vs Longi Solar LR7-54HVB-480M side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/longi-lr7-54hvb-480m" updated: 2026-09-11 --- # DMEGC DM465M10RT-B54HBW vs Longi Solar LR7-54HVB-480M LR7-54HVB-480M leads on the differences that matter The largest is temperature coefficient: 0.030 %/°C better in heat. 5 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 | [DMEGC DM465M10RT-B54HBW](https://comparepv.com/panel/dmegc-solar-hengdian-group-dm465m10rt-b54hbw) | [Longi Solar LR7-54HVB-480M](https://comparepv.com/panel/longi-lr7-54hvb-480m) | | Manufacturer | DMEGC | Longi Solar | | Power | 465 Wp | 480 Wp | | Efficiency | 23.30 % | 23.50 % | | Technology | TOPCon | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | DM465M10RT-B54HBW | LR7-54HVB-480M | Difference | | --- | --- | --- | --- | | Temperature coefficient | -0.290 %/°C | -0.260 %/°C | +0.030 %/°C for LR7-54HVB-480M | | Weight per kWp | 52.7 kg/kWp | 45.0 kg/kWp | -7.7 kg/kWp for LR7-54HVB-480M | | Weight | 24.5 kg | 21.6 kg | -2.9 kg for LR7-54HVB-480M | | Rated power | 465 Wp | 480 Wp | +15 W for LR7-54HVB-480M | | Cell technology | TOPCon | N-type | TOPCon vs N-type | | Module efficiency | 23.30 % | 23.50 % | +0.20 pp for LR7-54HVB-480M | | Module area | 1.998 m² | 2.041 m² | 0.043 m² apart | | Annual degradation | 0.40 %/yr | 0.35 %/yr | -0.05 %/yr for LR7-54HVB-480M | | Short-circuit current | 14.38 A | 15.13 A | 0.75 A apart | | Bifacial | Yes | No | Yes vs No | | Dimensions | 1762x1134x30 mm | 1800x1134x30 mm | 1762x1134x30 mm vs 1800x1134x30 mm | | Current at max power | 13.48 A | 14.43 A | 0.95 A apart | | Voltage at max power | 34.51 V | 33.28 V | 1.23 V apart | ## Every compared parameter | Parameter | DM465M10RT-B54HBW | LR7-54HVB-480M | | --- | --- | --- | | Rated power | 465 Wp | 480 Wp | | Module efficiency | 23.30 % | 23.50 % | | Power density | 232.7 Wp/m² | 235.2 Wp/m² | | Open-circuit voltage | 40.85 V | 40.29 V | | Voltage at max power | 34.51 V | 33.28 V | | Short-circuit current | 14.38 A | 15.13 A | | Current at max power | 13.48 A | 14.43 A | | Temperature coefficient | -0.290 %/°C | -0.260 %/°C | | Dimensions | 1762x1134x30 mm | 1800x1134x30 mm | | Module area | 1.998 m² | 2.041 m² | | Weight | 24.5 kg | 21.6 kg | | Weight per kWp | 52.7 kg/kWp | 45.0 kg/kWp | | Product warranty | 25 yrs | - | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.35 %/yr | | Cell technology | TOPCon | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | Yes | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, DM465M10RT-B54HBW:** 15,602 kWh - **Cumulative output, LR7-54HVB-480M:** 16,230 kWh - **Gap:** 628 kWh ## Output when hot | Condition | Cell temperature | DM465M10RT-B54HBW | LR7-54HVB-480M | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 465 W | 480 W | 100.0% of rated power | | Cool, bright day | 40 °C | 445 W | 461 W | 95.7% of rated power | | Typical summer roof | 55 °C | 425 W | 443 W | 91.3% of rated power | | Hot roof | 70 °C | 404 W | 424 W | 87.0% of rated power | ## Against the whole database | Measure | DM465M10RT-B54HBW | LR7-54HVB-480M | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,017 | #716 | 14,005 | LR7-54HVB-480M leads by 301 places | | Power density | #1,115 | #718 | 14,005 | LR7-54HVB-480M leads by 397 places | | Heat behaviour | #2,165 | #511 | 14,005 | LR7-54HVB-480M leads by 1,654 places | | Weight | #6,318 | #598 | 14,005 | LR7-54HVB-480M leads by 5,720 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #4,775 | #9,198 | 14,005 | DM465M10RT-B54HBW leads by 4,423 places | ## Questions ### Which panel is better: DMEGC DM465M10RT-B54HBW or Longi Solar LR7-54HVB-480M? According to our database: **Longi Solar LR7-54HVB-480M** has higher module efficiency (**23.50%** vs **23.30%**); **Longi Solar LR7-54HVB-480M** tolerates heat better (temp coeff **-0.260%/°C** vs **-0.290%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of DMEGC DM465M10RT-B54HBW and Longi Solar LR7-54HVB-480M? **DMEGC DM465M10RT-B54HBW** has a module efficiency of **23.30%**, while **Longi Solar LR7-54HVB-480M** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does DMEGC DM465M10RT-B54HBW use vs Longi Solar LR7-54HVB-480M? **DMEGC DM465M10RT-B54HBW** uses **TOPCon** cells; **Longi Solar LR7-54HVB-480M** uses **N-type**. 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 DMEGC DM465M10RT-B54HBW and Longi Solar LR7-54HVB-480M? **DMEGC DM465M10RT-B54HBW** has a **30 years** power warranty; **Longi Solar LR7-54HVB-480M** has a **30 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. ### Are DMEGC DM465M10RT-B54HBW and Longi Solar LR7-54HVB-480M bifacial panels? **DMEGC DM465M10RT-B54HBW** is bifacial (captures light from both faces); **Longi Solar LR7-54HVB-480M** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [DMEGC DM465M10RT-B54HBW vs DMEGC DM465M10RT-B54HSW](https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/dmegc-solar-hengdian-group-dmegc-magnetics-co-ltd-dm465m10rt-b54hsw) - The same specification on paper - [DMEGC DM465M10RT-B54HBW vs DMEGC DM460M10RT-B54HBB](https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/dmegc-hengdian-group-dm460m10rt-b54hbb) - One difference: module efficiency - [DMEGC DM465M10RT-B54HBW vs DMEGC DM460M10RT-B54HBW](https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/dmegc-solar-hengdian-group-dm460m10rt-b54hbw) - One difference: module efficiency - [DMEGC DM465M10RT-B54HBW vs DMEGC DM460M10RT-B54HBT](https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/dmegc-solar-hengdian-group-dmegc-magnetics-co-ltd-dm460m10rt-b54hbt) - One difference: module efficiency - [DMEGC DM465M10RT-B54HBW vs DMEGC DM460M10RT-B54HSW](https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/dmegc-solar-hengdian-group-dmegc-magnetics-co-ltd-dm460m10rt-b54hsw) - One difference: module efficiency - [DMEGC DM465M10RT-B54HBW vs DMEGC DM455M10RT-B54HBB](https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/dmegc-hengdian-group-dm455m10rt-b54hbb) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/dmegc-solar-hengdian-group-dm465m10rt-b54hbw/longi-lr7-54hvb-480m 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.