--- title: "Solarwatt SOLARWATT Panel vision M 5.0 450 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp - Solar Panel Comparison | ComparePV" description: "Compare Solarwatt SOLARWATT Panel vision M 5.0 450 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450-wp/solarwatt-solarwatt-panel-vision-m-5-0-450wp" updated: 2026-09-11 --- # Solarwatt SOLARWATT Panel vision M 5.0 450 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp Identical on every published parameter All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Solarwatt SOLARWATT Panel vision M 5.0 450 Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-450-wp) | [Solarwatt SOLARWATT Panel vision M 5.0 450Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-450wp) | | Manufacturer | Solarwatt | Solarwatt | | Power | 450 Wp | 450 Wp | | Efficiency | 22.50 % | 22.50 % | | Technology | TOPCon | TOPCon | ## Every compared parameter | Parameter | 450 Wp | 450Wp | | --- | --- | --- | | Rated power | 450 Wp | 450 Wp | | Module efficiency | 22.50 % | 22.50 % | | Power density | 225.2 Wp/m² | 225.2 Wp/m² | | Open-circuit voltage | 39.80 V | 39.80 V | | Voltage at max power | 33.20 V | 33.20 V | | Short-circuit current | 14.00 A | 14.00 A | | Current at max power | 13.50 A | 13.50 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1762x1134x35 mm | 1762x1134x35 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 24.8 kg | 24.8 kg | | Weight per kWp | 55.1 kg/kWp | 55.1 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | - | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | Yes | 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 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, 450 Wp:** 15,098 kWh - **Cumulative output, 450Wp:** 15,098 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | 450 Wp | 450Wp | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 450 W | 450 W | 100.0% of rated power | | Cool, bright day | 40 °C | 430 W | 430 W | 95.7% of rated power | | Typical summer roof | 55 °C | 411 W | 411 W | 91.3% of rated power | | Hot roof | 70 °C | 391 W | 391 W | 87.0% of rated power | ## Against the whole database | Measure | 450 Wp | 450Wp | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,222 | #4,222 | 14,005 | Tied - the same position in the database | | Power density | #4,225 | #4,225 | 14,005 | Tied - the same position in the database | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #9,543 | #9,543 | 14,005 | Tied - the same position in the database | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #5,200 | #5,200 | 14,005 | Tied - the same position in the database | ## Questions ### Which panel is better: Solarwatt SOLARWATT Panel vision M 5.0 450 Wp or Solarwatt SOLARWATT Panel vision M 5.0 450Wp? According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Solarwatt SOLARWATT Panel vision M 5.0 450 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp? **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** has a module efficiency of **22.50%**, 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 Solarwatt SOLARWATT Panel vision M 5.0 450 Wp use vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp? **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** uses **TOPCon** 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 Solarwatt SOLARWATT Panel vision M 5.0 450 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp? **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** has a **30 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 Solarwatt SOLARWATT Panel vision M 5.0 450 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp bifacial panels? Both **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** and **Solarwatt SOLARWATT Panel vision M 5.0 **450 Wp**** 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 - [Solarwatt SOLARWATT Panel vision M 5.0 450 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 460 Wp](https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450-wp/solarwatt-solarwatt-panel-vision-m-5-0-460-wp) - 3 differences, the largest is module efficiency - [Solarwatt SOLARWATT Panel vision M 5.0 450 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 455 Wp](https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450-wp/solarwatt-solarwatt-panel-vision-m-5-0-455-wp) - One difference: module efficiency - [Solarwatt SOLARWATT Panel vision M 5.0 450 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 445 Wp](https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450-wp/solarwatt-solarwatt-panel-vision-m-5-0-445-wp) - One difference: module efficiency - [Solarwatt SOLARWATT Panel vision M 5.0 450Wp vs Solarwatt vision M 5.0 450 Wp](https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450wp/solarwatt-vision-m-5-0-450-wp) - The same specification on paper - [Solarwatt SOLARWATT Panel vision M 5.0 450Wp vs Solarwatt SOLARWATT Panel vision M 5.0 445Wp](https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450wp/solarwatt-solarwatt-panel-vision-m-5-0-445wp) - One difference: module efficiency - [Solarwatt SOLARWATT Panel vision M 5.0 450Wp vs Solarwatt vision M 5.0 445 Wp](https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450wp/solarwatt-vision-m-5-0-445-wp) - One difference: module efficiency --- Source: https://comparepv.com/compare/solarwatt-solarwatt-panel-vision-m-5-0-450-wp/solarwatt-solarwatt-panel-vision-m-5-0-450wp 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.