---
title: "Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVHF-655M - Solar Panel Comparison | ComparePV"
description: "Compare Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVHF-655M side by side: what actually differs, output when it is hot, thirty-year production, and the full specification."
source: "https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-lr7-72hvhf-655m"
image: "https://comparepv.com/og/compare/panels/longi-lr5-72hbd-540m/longi-lr7-72hvhf-655m.png"
updated: 2026-09-11
---

# Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVHF-655M

LR7-72HVHF-655M leads on the differences that matter

The largest is module efficiency: 3.30 pp more efficient. 3 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 LR5-72HBD-540M](https://comparepv.com/panel/longi-lr5-72hbd-540m) | [Longi Solar LR7-72HVHF-655M](https://comparepv.com/panel/longi-lr7-72hvhf-655m) |
| Manufacturer | Longi Solar | Longi Solar |
| Power | 540 Wp | 655 Wp |
| Efficiency | 20.90 % | 24.20 % |
| Technology |  | N-type |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | LR5-72HBD-540M | LR7-72HVHF-655M | Difference |
| --- | --- | --- | --- |
| Module efficiency | 20.90 % | 24.20 % | +3.30 pp for LR7-72HVHF-655M |
| Temperature coefficient | -0.340 %/°C | -0.260 %/°C | +0.080 %/°C for LR7-72HVHF-655M |
| Rated power | 540 Wp | 655 Wp | +115 W for LR7-72HVHF-655M |
| Power density | 209.0 Wp/m² | 242.5 Wp/m² | +33.4 Wp/m² for LR7-72HVHF-655M |
| Weight per kWp | 58.9 kg/kWp | 43.5 kg/kWp | -15.4 kg/kWp for LR7-72HVHF-655M |
| Weight | 31.8 kg | 28.5 kg | -3.3 kg for LR7-72HVHF-655M |
| Product warranty | 12 yrs | 15 yrs | +3 yrs for LR7-72HVHF-655M |
| Annual degradation | 0.45 %/yr | 0.35 %/yr | -0.10 %/yr for LR7-72HVHF-655M |
| Open-circuit voltage | 49.50 V | 54.00 V | 4.50 V apart |
| Module area | 2.583 m² | 2.701 m² | 0.118 m² apart |
| Short-circuit current | 13.85 A | 15.37 A | 1.52 A apart |
| Current at max power | 12.97 A | 14.67 A | 1.70 A apart |
| Voltage at max power | 41.65 V | 44.66 V | 3.01 V apart |
| Bifacial | Yes | No | Yes vs No |
| Dimensions | 2278x1134x30 mm | 2382x1134x30 mm | 2278x1134x30 mm vs 2382x1134x30 mm |


## Every compared parameter


| Parameter | LR5-72HBD-540M | LR7-72HVHF-655M |
| --- | --- | --- |
| Rated power | 540 Wp | 655 Wp |
| Module efficiency | 20.90 % | 24.20 % |
| Power density | 209.0 Wp/m² | 242.5 Wp/m² |
| Open-circuit voltage | 49.50 V | 54.00 V |
| Voltage at max power | 41.65 V | 44.66 V |
| Short-circuit current | 13.85 A | 15.37 A |
| Current at max power | 12.97 A | 14.67 A |
| Temperature coefficient | -0.340 %/°C | -0.260 %/°C |
| Dimensions | 2278x1134x30 mm | 2382x1134x30 mm |
| Module area | 2.583 m² | 2.701 m² |
| Weight | 31.8 kg | 28.5 kg |
| Weight per kWp | 58.9 kg/kWp | 43.5 kg/kWp |
| Product warranty | 12 yrs | 15 yrs |
| Performance warranty | 30 yrs | 30 yrs |
| Annual degradation | 0.45 %/yr | 0.35 %/yr |
| Cell technology | - | N-type |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | 144 | 144 |
| Bifacial | Yes | No |


## Thirty-year yield

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

- **Cumulative output, LR5-72HBD-540M:** 17,783 kWh
- **Cumulative output, LR7-72HVHF-655M:** 22,148 kWh
- **Gap:** 4,365 kWh


## Output when hot


| Condition | Cell temperature | LR5-72HBD-540M | LR7-72HVHF-655M | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 540 W | 655 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 512 W | 629 W | 94.9% of rated power |
| Typical summer roof | 55 °C | 485 W | 604 W | 89.8% of rated power |
| Hot roof | 70 °C | 457 W | 578 W | 84.7% of rated power |


## Against the whole database


| Measure | LR5-72HBD-540M | LR7-72HVHF-655M | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #10,148 | #206 | 14,129 | LR7-72HVHF-655M leads by 9,942 places |
| Power density | #10,176 | #192 | 14,129 | LR7-72HVHF-655M leads by 9,984 places |
| Heat behaviour | #8,846 | #515 | 14,129 | LR7-72HVHF-655M leads by 8,331 places |
| Weight | #12,026 | #304 | 14,129 | LR7-72HVHF-655M leads by 11,722 places |
| Warranty | #21 | #21 | 14,129 | Tied - the same position in the database |
| Overall | #7,953 | #673 | 14,129 | LR7-72HVHF-655M leads by 7,280 places |


## Questions


### Which panel is better: Longi Solar LR5-72HBD-540M or Longi Solar LR7-72HVHF-655M?

According to our database: **Longi Solar LR7-72HVHF-655M** has higher module efficiency (**24.20%** vs **20.90%**); **Longi Solar LR7-72HVHF-655M** tolerates heat better (temp coeff **-0.260%/°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 Longi Solar LR5-72HBD-540M and Longi Solar LR7-72HVHF-655M?

**Longi Solar LR5-72HBD-540M** has a module efficiency of **20.90%**, while **Longi Solar LR7-72HVHF-655M** is **24.20%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Longi Solar LR5-72HBD-540M use vs Longi Solar LR7-72HVHF-655M?

**Longi Solar LR5-72HBD-540M** uses Monocrystalline cells; **Longi Solar LR7-72HVHF-655M** 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 Longi Solar LR5-72HBD-540M and Longi Solar LR7-72HVHF-655M?

**Longi Solar LR5-72HBD-540M** has a **30 years** power warranty; **Longi Solar LR7-72HVHF-655M** 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 Longi Solar LR5-72HBD-540M and Longi Solar LR7-72HVHF-655M bifacial panels?

**Longi Solar LR5-72HBD-540M** is bifacial (captures light from both faces); **Longi Solar LR7-72HVHF-655M** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.


## Related comparisons

- [Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVDF-655M](https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-lr7-72hvdf-655m) - 14 differences, the largest is module efficiency
- [Longi Solar LR5-72HBD-540M vs Longi Solar LR8-66HVD-655M](https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-lr8-66hvd-655m) - 13 differences, the largest is module efficiency
- [Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVD-655M](https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-lr7-72hvd-655m) - 14 differences, the largest is module efficiency
- [Longi Solar LR5-72HBD-540M vs Longi Solar LR8-66HYD-655M](https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-solar-lr8-66hyd-655m) - 12 differences, the largest is module efficiency
- [Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HYD-655M](https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-lr7-72hyd-655m) - 13 differences, the largest is module efficiency
- [Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVH-655M](https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-lr7-72hvh-655m) - 15 differences, the largest is module efficiency


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Source: https://comparepv.com/compare/longi-lr5-72hbd-540m/longi-lr7-72hvhf-655m

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.