--- title: "Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.72.550.05 - Solar Panel Comparison | ComparePV" description: "Compare Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.72.550.05 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-72-550-05" image: "https://comparepv.com/og/compare/panels/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-72-550-05.png" updated: 2026-09-11 --- # Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.72.550.05 66.AAA.05-675 leads on the differences that matter The largest is rated power: 125 W more power. 8 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Vikram Solar PARADEA VSMDH.66.AAA.05-675](https://comparepv.com/panel/vikram-solar-paradea-vsmdh-66-aaa-05-675) | [Vikram Solar PARADEA VSMDH.72.550.05](https://comparepv.com/panel/vikram-solar-paradea-vsmdh-72-550-05) | | Manufacturer | Vikram Solar | Vikram Solar | | Power | 675 Wp | 550 Wp | | Efficiency | 21.73 % | 21.29 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 66.AAA.05-675 | 72.550.05 | Difference | | --- | --- | --- | --- | | Rated power | 675 Wp | 550 Wp | +125 W for 66.AAA.05-675 | | Weight | 39.5 kg | 32.5 kg | -7.0 kg for 72.550.05 | | Module efficiency | 21.73 % | 21.29 % | +0.44 pp for 66.AAA.05-675 | | Short-circuit current | 18.17 A | 13.82 A | 4.35 A apart | | Module area | 3.106 m² | 2.583 m² | 0.523 m² apart | | Open-circuit voltage | 46.70 V | 49.70 V | 3.00 V apart | | Power density | 217.3 Wp/m² | 212.9 Wp/m² | +4.4 Wp/m² for 66.AAA.05-675 | | Current at max power | 17.27 A | 13.14 A | 4.13 A apart | | Cell count | 132 | 144 | 12 cells apart | | Voltage at max power | 39.10 V | 41.90 V | 2.80 V apart | | Dimensions | 2384x1303x35 mm | 2278x1134x30 mm | 2384x1303x35 mm vs 2278x1134x30 mm | ## Every compared parameter | Parameter | 66.AAA.05-675 | 72.550.05 | | --- | --- | --- | | Rated power | 675 Wp | 550 Wp | | Module efficiency | 21.73 % | 21.29 % | | Power density | 217.3 Wp/m² | 212.9 Wp/m² | | Open-circuit voltage | 46.70 V | 49.70 V | | Voltage at max power | 39.10 V | 41.90 V | | Short-circuit current | 18.17 A | 13.82 A | | Current at max power | 17.27 A | 13.14 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 2384x1303x35 mm | 2278x1134x30 mm | | Module area | 3.106 m² | 2.583 m² | | Weight | 39.5 kg | 32.5 kg | | Weight per kWp | 58.5 kg/kWp | 59.1 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.50 %/yr | 0.50 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 144 | | 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 (-0.350 %/°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, 66.AAA.05-675:** 22,052 kWh - **Cumulative output, 72.550.05:** 17,969 kWh - **Gap:** 4,083 kWh ## Output when hot | Condition | Cell temperature | 66.AAA.05-675 | 72.550.05 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 675 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 640 W | 521 W | 94.8% of rated power | | Typical summer roof | 55 °C | 604 W | 492 W | 89.5% of rated power | | Hot roof | 70 °C | 569 W | 463 W | 84.2% of rated power | ## Against the whole database | Measure | 66.AAA.05-675 | 72.550.05 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #7,434 | #8,776 | 14,129 | 66.AAA.05-675 leads by 1,342 places | | Power density | #7,413 | #8,563 | 14,129 | 66.AAA.05-675 leads by 1,150 places | | Heat behaviour | #10,489 | #10,489 | 14,129 | Tied - the same position in the database | | Weight | #11,862 | #12,099 | 14,129 | 66.AAA.05-675 leads by 237 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #2,222 | #7,059 | 14,129 | 66.AAA.05-675 leads by 4,837 places | ## Questions ### Which panel is better: Vikram Solar PARADEA VSMDH.66.AAA.05-675 or Vikram Solar PARADEA VSMDH.72.550.05? According to our database: **Vikram Solar PARADEA VSMDH.66.AAA.05-675** has higher module efficiency (**21.73%** vs **21.29%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Vikram Solar PARADEA VSMDH.66.AAA.05-675 and Vikram Solar PARADEA VSMDH.72.550.05? **Vikram Solar PARADEA VSMDH.66.AAA.05-675** has a module efficiency of **21.73%**, while **Vikram Solar PARADEA VSMDH.72.550.05** is **21.29%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Vikram Solar PARADEA VSMDH.66.AAA.05-675 use vs Vikram Solar PARADEA VSMDH.72.550.05? **Vikram Solar PARADEA VSMDH.66.AAA.05-675** uses **PERC** cells; **Vikram Solar PARADEA VSMDH.72.550.05** uses **PERC**. 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 Vikram Solar PARADEA VSMDH.66.AAA.05-675 and Vikram Solar PARADEA VSMDH.72.550.05? **Vikram Solar PARADEA VSMDH.66.AAA.05-675** has a **30 years** power warranty; **Vikram Solar PARADEA VSMDH.72.550.05** 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 Vikram Solar PARADEA VSMDH.66.AAA.05-675 and Vikram Solar PARADEA VSMDH.72.550.05 bifacial panels? Both **Vikram Solar PARADEA VSMDH.66.AAA.05-675** and **Vikram Solar PARADEA VSMDH.72.550.05** 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 - [Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.66.AAA.05-680](https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-66-aaa-05-680) - The same specification on paper - [Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.66.AAA.05](https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-66-aaa-05) - The same specification on paper - [Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.66.AAA.05-670](https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-66-aaa-05-670) - The same specification on paper - [Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.66.AAA.05-665](https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-66-aaa-05-665) - 3 differences, the largest is module efficiency - [Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.66.AAA.05-660](https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-66-aaa-05-660) - 3 differences, the largest is module efficiency - [Vikram Solar PARADEA VSMDH.66.AAA.05-675 vs Vikram Solar PARADEA VSMDH.66.AAA.05-655](https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-66-aaa-05-655) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/vikram-solar-paradea-vsmdh-66-aaa-05-675/vikram-solar-paradea-vsmdh-72-550-05 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.