--- title: "Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX-455M/182R188-108+ GG - Solar Panel Comparison | ComparePV" description: "Compare Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX-455M/182R188-108+ GG side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-455m-182r188-108-gg" updated: 2026-09-11 --- # Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX-455M/182R188-108+ GG 455M/182R188-108+ GG leads on the differences that matter The largest is module efficiency: 0.50 pp more efficient. 15 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 | [Luxor Solar LX-445M/182R188-108+ GG](https://comparepv.com/panel/luxor-solar-lx-445m-182r188-108-gg) | [Luxor Solar LX-455M/182R188-108+ GG](https://comparepv.com/panel/luxor-solar-lx-455m-182r188-108-gg) | | Manufacturer | Luxor Solar | Luxor Solar | | Power | 445 Wp | 455 Wp | | Efficiency | 22.60 % | 23.10 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 445M/182R188-108+ GG | 455M/182R188-108+ GG | Difference | | --- | --- | --- | --- | | Module efficiency | 22.60 % | 23.10 % | +0.50 pp for 455M/182R188-108+ GG | | Power density | 222.7 Wp/m² | 227.7 Wp/m² | +5.0 Wp/m² for 455M/182R188-108+ GG | | Rated power | 445 Wp | 455 Wp | +10 W for 455M/182R188-108+ GG | ## Every compared parameter | Parameter | 445M/182R188-108+ GG | 455M/182R188-108+ GG | | --- | --- | --- | | Rated power | 445 Wp | 455 Wp | | Module efficiency | 22.60 % | 23.10 % | | Power density | 222.7 Wp/m² | 227.7 Wp/m² | | Open-circuit voltage | 38.85 V | 39.32 V | | Voltage at max power | 32.44 V | 32.83 V | | Short-circuit current | 14.51 A | 14.66 A | | Current at max power | 13.73 A | 13.87 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1762x1134x30 mm | 1762x1134x30 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 24.5 kg | 24.5 kg | | Weight per kWp | 55.1 kg/kWp | 53.8 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, 445M/182R188-108+ GG:** 14,931 kWh - **Cumulative output, 455M/182R188-108+ GG:** 15,266 kWh - **Gap:** 335 kWh ## Output when hot | Condition | Cell temperature | 445M/182R188-108+ GG | 455M/182R188-108+ GG | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 445 W | 455 W | 100.0% of rated power | | Cool, bright day | 40 °C | 426 W | 435 W | 95.7% of rated power | | Typical summer roof | 55 °C | 406 W | 415 W | 91.3% of rated power | | Hot roof | 70 °C | 387 W | 396 W | 87.0% of rated power | ## Against the whole database | Measure | 445M/182R188-108+ GG | 455M/182R188-108+ GG | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,658 | #1,570 | 14,005 | 455M/182R188-108+ GG leads by 2,088 places | | Power density | #5,302 | #2,888 | 14,005 | 455M/182R188-108+ GG leads by 2,414 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #9,435 | #7,897 | 14,005 | 455M/182R188-108+ GG leads by 1,538 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #5,238 | #4,354 | 14,005 | 455M/182R188-108+ GG leads by 884 places | ## Questions ### Which panel is better: Luxor Solar LX-445M/182R188-108+ GG or Luxor Solar LX-455M/182R188-108+ GG? According to our database: **Luxor Solar LX-455M/182R188-108+ GG** has higher module efficiency (**23.10%** vs **22.60%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Luxor Solar LX-445M/182R188-108+ GG and Luxor Solar LX-455M/182R188-108+ GG? **Luxor Solar LX-445M/182R188-108+ GG** has a module efficiency of **22.60%**, while **Luxor Solar LX-455M/182R188-108+ GG** is **23.10%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Luxor Solar LX-445M/182R188-108+ GG use vs Luxor Solar LX-455M/182R188-108+ GG? **Luxor Solar LX-445M/182R188-108+ GG** uses **TOPCon** cells; **Luxor Solar LX-455M/182R188-108+ GG** 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 Luxor Solar LX-445M/182R188-108+ GG and Luxor Solar LX-455M/182R188-108+ GG? **Luxor Solar LX-445M/182R188-108+ GG** has a **30 years** power warranty; **Luxor Solar LX-455M/182R188-108+ GG** 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 Luxor Solar LX-445M/182R188-108+ GG and Luxor Solar LX-455M/182R188-108+ GG bifacial panels? Both **Luxor Solar LX-445M/182R188-108+ GG** and **Luxor Solar LX-455M/182R188-108+ GG** 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 - [Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX-465M/182R188-108+ GG](https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-465m-182r188-108-gg) - 4 differences, the largest is module efficiency - [Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX-460M/182R188-108+ GG](https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-460m-182r188-108-gg) - 3 differences, the largest is module efficiency - [Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX-450M/182R188-108+ GG](https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-450m-182r188-108-gg) - One difference: module efficiency - [Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX - 430 M/182-108+ GG](https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-430-m-182-108-gg) - 5 differences, the largest is module efficiency - [Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX - 425 M/182-108+ GG](https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-425-m-182-108-gg) - 6 differences, the largest is module efficiency - [Luxor Solar LX-445M/182R188-108+ GG vs Luxor Solar LX - 420 M/182-108+ GG](https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-420-m-182-108-gg) - 7 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/luxor-solar-lx-445m-182r188-108-gg/luxor-solar-lx-455m-182r188-108-gg 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.