---
title: "VSUN VSUN470N-120BMH-DG-BB vs VSUN VSUN705N-132BMHT-DG - Solar Panel Comparison | ComparePV"
description: "Compare VSUN VSUN470N-120BMH-DG-BB vs VSUN VSUN705N-132BMHT-DG side by side: what actually differs, output when it is hot, thirty-year production, and the full specification."
source: "https://comparepv.com/compare/vsun-vsun470n-120bmh-dg-bb/vsun-vsun705n-132bmht-dg"
updated: 2026-09-11
---

# VSUN VSUN470N-120BMH-DG-BB vs VSUN VSUN705N-132BMHT-DG

VSUN705N-132BMHT-DG leads on the differences that matter

The largest is module efficiency: 0.98 pp more efficient. 6 of 19 comparable parameters are identical.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [VSUN VSUN470N-120BMH-DG-BB](https://comparepv.com/panel/vsun-vsun470n-120bmh-dg-bb) | [VSUN VSUN705N-132BMHT-DG](https://comparepv.com/panel/vsun-vsun705n-132bmht-dg) |
| Manufacturer | VSUN | VSUN |
| Power | 470 Wp | 705 Wp |
| Efficiency | 21.72 % | 22.70 % |
| Technology | TOPCon | TOPCon |


## Where they differ

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


| Parameter | VSUN470N-120BMH-DG-BB | VSUN705N-132BMHT-DG | Difference |
| --- | --- | --- | --- |
| Module efficiency | 21.72 % | 22.70 % | +0.98 pp for VSUN705N-132BMHT-DG |
| Rated power | 470 Wp | 705 Wp | +235 W for VSUN705N-132BMHT-DG |
| Power density | 217.2 Wp/m² | 227.0 Wp/m² | +9.7 Wp/m² for VSUN705N-132BMHT-DG |
| Weight | 26.7 kg | 38.5 kg | -11.8 kg for VSUN470N-120BMH-DG-BB |
| Product warranty | 25 yrs | 12 yrs | +13 yrs for VSUN470N-120BMH-DG-BB |
| Open-circuit voltage | 42.37 V | 48.70 V | 6.33 V apart |
| Short-circuit current | 14.15 A | 18.37 A | 4.22 A apart |
| Module area | 2.164 m² | 3.106 m² | 0.943 m² apart |
| Voltage at max power | 35.07 V | 40.70 V | 5.63 V apart |
| Current at max power | 13.41 A | 17.33 A | 3.92 A apart |
| Cell count | 120 | 132 | 12 cells apart |
| Weight per kWp | 56.8 kg/kWp | 54.6 kg/kWp | -2.2 kg/kWp for VSUN705N-132BMHT-DG |
| Dimensions | 1908x1134x30 mm | 2384x1303x35 mm | 1908x1134x30 mm vs 2384x1303x35 mm |


## Every compared parameter


| Parameter | VSUN470N-120BMH-DG-BB | VSUN705N-132BMHT-DG |
| --- | --- | --- |
| Rated power | 470 Wp | 705 Wp |
| Module efficiency | 21.72 % | 22.70 % |
| Power density | 217.2 Wp/m² | 227.0 Wp/m² |
| Open-circuit voltage | 42.37 V | 48.70 V |
| Voltage at max power | 35.07 V | 40.70 V |
| Short-circuit current | 14.15 A | 18.37 A |
| Current at max power | 13.41 A | 17.33 A |
| Temperature coefficient | -0.300 %/°C | -0.300 %/°C |
| Dimensions | 1908x1134x30 mm | 2384x1303x35 mm |
| Module area | 2.164 m² | 3.106 m² |
| Weight | 26.7 kg | 38.5 kg |
| Weight per kWp | 56.8 kg/kWp | 54.6 kg/kWp |
| Product warranty | 25 yrs | 12 yrs |
| Performance warranty | 30 yrs | 30 yrs |
| Annual degradation | 0.40 %/yr | 0.40 %/yr |
| Cell technology | TOPCon | TOPCon |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | 120 | 132 |
| Bifacial | Yes | Yes |


## Thirty-year yield

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

Same temp coeff. for both panels (-0.300 %/°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, VSUN470N-120BMH-DG-BB:** 15,769 kWh
- **Cumulative output, VSUN705N-132BMHT-DG:** 23,654 kWh
- **Gap:** 7,885 kWh


## Output when hot


| Condition | Cell temperature | VSUN470N-120BMH-DG-BB | VSUN705N-132BMHT-DG | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 470 W | 705 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 449 W | 673 W | 95.5% of rated power |
| Typical summer roof | 55 °C | 428 W | 642 W | 91.0% of rated power |
| Hot roof | 70 °C | 407 W | 610 W | 86.5% of rated power |


## Against the whole database


| Measure | VSUN470N-120BMH-DG-BB | VSUN705N-132BMHT-DG | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #7,399 | #3,307 | 14,005 | VSUN705N-132BMHT-DG leads by 4,092 places |
| Power density | #7,384 | #3,361 | 14,005 | VSUN705N-132BMHT-DG leads by 4,023 places |
| Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database |
| Weight | #10,872 | #8,959 | 14,005 | VSUN705N-132BMHT-DG leads by 1,913 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #6,515 | #1,037 | 14,005 | VSUN705N-132BMHT-DG leads by 5,478 places |


## Questions


### Which panel is better: VSUN VSUN470N-120BMH-DG-BB or VSUN VSUN705N-132BMHT-DG?

According to our database: **VSUN VSUN705N-132BMHT-DG** has higher module efficiency (**22.70%** vs **21.72%**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of VSUN VSUN470N-120BMH-DG-BB and VSUN VSUN705N-132BMHT-DG?

**VSUN VSUN470N-120BMH-DG-BB** has a module efficiency of **21.72%**, while **VSUN VSUN705N-132BMHT-DG** is **22.70%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does VSUN VSUN470N-120BMH-DG-BB use vs VSUN VSUN705N-132BMHT-DG?

**VSUN VSUN470N-120BMH-DG-BB** uses **TOPCon** cells; **VSUN VSUN705N-132BMHT-DG** uses **TOPCon**. 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 VSUN VSUN470N-120BMH-DG-BB and VSUN VSUN705N-132BMHT-DG?

**VSUN VSUN470N-120BMH-DG-BB** has a **30 years** power warranty; **VSUN VSUN705N-132BMHT-DG** 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 VSUN VSUN470N-120BMH-DG-BB and VSUN VSUN705N-132BMHT-DG bifacial panels?

Both **VSUN VSUN470N-120BMH-DG-BB** and **VSUN VSUN705N-132BMHT-DG** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.


## Related comparisons

- [VSUN VSUN470N-120BMH-DG-BB vs VSUN VSUN475N-120BMH-DG-BB](https://comparepv.com/compare/vsun-vsun470n-120bmh-dg-bb/vsun-vsun475n-120bmh-dg-bb) - One difference: module efficiency
- [VSUN VSUN470N-120BMH-DG-BB vs VSUN VSUN465N-120BMH-DG-BB](https://comparepv.com/compare/vsun-vsun470n-120bmh-dg-bb/vsun-vsun465n-120bmh-dg-bb) - One difference: module efficiency
- [VSUN VSUN470N-120BMH-DG-BB vs VSUN VSUN460N-120BMH-DG-BB](https://comparepv.com/compare/vsun-vsun470n-120bmh-dg-bb/vsun-vsun460n-120bmh-dg-bb) - 3 differences, the largest is module efficiency
- [VSUN VSUN705N-132BMHT-DG vs VSUN VSUN715N-132BMHT-DG](https://comparepv.com/compare/vsun-vsun705n-132bmht-dg/vsun-vsun715n-132bmht-dg) - 3 differences, the largest is module efficiency
- [VSUN VSUN705N-132BMHT-DG vs VSUN VSUN710N-132BMHT-DG](https://comparepv.com/compare/vsun-vsun705n-132bmht-dg/vsun-vsun710n-132bmht-dg) - The same specification on paper
- [VSUN VSUN705N-132BMHT-DG vs VSUN VSUN700N-132BMH-DG](https://comparepv.com/compare/vsun-vsun705n-132bmht-dg/vsun-vsun700n-132bmh-dg) - The same specification on paper


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Source: https://comparepv.com/compare/vsun-vsun470n-120bmh-dg-bb/vsun-vsun705n-132bmht-dg

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.