---
title: "Solaria Solaria PowerX-395R vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp - Solar Panel Comparison | ComparePV"
description: "Compare Solaria Solaria PowerX-395R vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp side by side: what actually differs, output when it is hot, thirty-year production, and the full specification."
source: "https://comparepv.com/compare/solaria-solaria-powerx-395r/solarwatt-solarwatt-panel-vision-m-5-0-450-wp"
updated: 2026-09-11
---

# Solaria Solaria PowerX-395R vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp

SOLARWATT Panel vision M 5.0 450 Wp leads on the differences that matter

The largest is module efficiency: 2.30 pp more efficient. 3 of 16 comparable parameters are identical, with 3 more left out because at least one datasheet does not publish them.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [Solaria Solaria PowerX-395R](https://comparepv.com/panel/solaria-solaria-powerx-395r) | [Solarwatt SOLARWATT Panel vision M 5.0 450 Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-450-wp) |
| Manufacturer | Solaria | Solarwatt |
| Power | 395 Wp | 450 Wp |
| Efficiency | 20.20 % | 22.50 % |
| Technology |  | TOPCon |


## Where they differ

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


| Parameter | Solaria PowerX-395R | SOLARWATT Panel vision M 5.0 450 Wp | Difference |
| --- | --- | --- | --- |
| Module efficiency | 20.20 % | 22.50 % | +2.30 pp for SOLARWATT Panel vision M 5.0 450 Wp |
| Temperature coefficient | -0.360 %/°C | -0.290 %/°C | +0.070 %/°C for SOLARWATT Panel vision M 5.0 450 Wp |
| Rated power | 395 Wp | 450 Wp | +55 W for SOLARWATT Panel vision M 5.0 450 Wp |
| Power density | 202.2 Wp/m² | 225.2 Wp/m² | +23.1 Wp/m² for SOLARWATT Panel vision M 5.0 450 Wp |
| Performance warranty | 25 yrs | 30 yrs | +5 yrs for SOLARWATT Panel vision M 5.0 450 Wp |
| Product warranty | 25 yrs | 30 yrs | +5 yrs for SOLARWATT Panel vision M 5.0 450 Wp |
| Weight | 22.1 kg | 24.8 kg | -2.7 kg for Solaria PowerX-395R |
| Open-circuit voltage | 37.10 V | 39.80 V | 2.70 V apart |
| Module area | 1.954 m² | 1.998 m² | 0.044 m² apart |
| Bifacial | No | Yes | No vs Yes |
| Voltage at max power | 30.80 V | 33.20 V | 2.40 V apart |
| Dimensions | 1723x1134x35 mm | 1762x1134x35 mm | 1723x1134x35 mm vs 1762x1134x35 mm |
| Current at max power | 12.82 A | 13.50 A | 0.68 A apart |


## Every compared parameter


| Parameter | Solaria PowerX-395R | SOLARWATT Panel vision M 5.0 450 Wp |
| --- | --- | --- |
| Rated power | 395 Wp | 450 Wp |
| Module efficiency | 20.20 % | 22.50 % |
| Power density | 202.2 Wp/m² | 225.2 Wp/m² |
| Open-circuit voltage | 37.10 V | 39.80 V |
| Voltage at max power | 30.80 V | 33.20 V |
| Short-circuit current | 13.60 A | 14.00 A |
| Current at max power | 12.82 A | 13.50 A |
| Temperature coefficient | -0.360 %/°C | -0.290 %/°C |
| Dimensions | 1723x1134x35 mm | 1762x1134x35 mm |
| Module area | 1.954 m² | 1.998 m² |
| Weight | 22.1 kg | 24.8 kg |
| Weight per kWp | 55.9 kg/kWp | 55.1 kg/kWp |
| Product warranty | 25 yrs | 30 yrs |
| Performance warranty | 25 yrs | 30 yrs |
| Annual degradation | 0.50 %/yr | - |
| Cell technology | - | TOPCon |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | - | 108 |
| Bifacial | No | Yes |


## Thirty-year yield

A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year

- **Cumulative output, Solaria PowerX-395R:** 13,253 kWh
- **Cumulative output, SOLARWATT Panel vision M 5.0 450 Wp:** 15,098 kWh
- **Gap:** 1,845 kWh


## Output when hot


| Condition | Cell temperature | Solaria PowerX-395R | SOLARWATT Panel vision M 5.0 450 Wp | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 395 W | 450 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 374 W | 430 W | 94.6% of rated power |
| Typical summer roof | 55 °C | 352 W | 411 W | 89.2% of rated power |
| Hot roof | 70 °C | 331 W | 391 W | 83.8% of rated power |


## Against the whole database


| Measure | Solaria PowerX-395R | SOLARWATT Panel vision M 5.0 450 Wp | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #11,956 | #4,222 | 14,005 | SOLARWATT Panel vision M 5.0 450 Wp leads by 7,734 places |
| Power density | #11,961 | #4,225 | 14,005 | SOLARWATT Panel vision M 5.0 450 Wp leads by 7,736 places |
| Heat behaviour | #12,345 | #2,165 | 14,005 | SOLARWATT Panel vision M 5.0 450 Wp leads by 10,180 places |
| Weight | #10,283 | #9,543 | 14,005 | SOLARWATT Panel vision M 5.0 450 Wp leads by 740 places |
| Warranty | #9,798 | #21 | 14,005 | SOLARWATT Panel vision M 5.0 450 Wp leads by 9,777 places |
| Overall | #10,998 | #5,200 | 14,005 | SOLARWATT Panel vision M 5.0 450 Wp leads by 5,798 places |


## Questions


### Which panel is better: Solaria Solaria PowerX-395R or Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

According to our database: **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** has higher module efficiency (**22.50%** vs **20.20%**); **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** tolerates heat better (temp coeff **-0.290%/°C** vs **-0.360%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Solaria Solaria PowerX-395R and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

**Solaria **Solaria** PowerX-395R** has a module efficiency of **20.20%**, while **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** is **22.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Solaria Solaria PowerX-395R use vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

**Solaria **Solaria** PowerX-395R** uses Monocrystalline cells; **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** 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 Solaria Solaria PowerX-395R and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

**Solaria **Solaria** PowerX-395R** has a **25 years** power warranty; **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** 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 Solaria Solaria PowerX-395R and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp bifacial panels?

**Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** is bifacial (captures light from both faces); **Solaria **Solaria** PowerX-395R** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.


## Related comparisons

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Source: https://comparepv.com/compare/solaria-solaria-powerx-395r/solarwatt-solarwatt-panel-vision-m-5-0-450-wp

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.