--- title: "AIKO AIKO-A655-MDE72Mw vs Jinko Solar JKM640N-66HL4M-BDV - Solar Panel Comparison | ComparePV" description: "Compare AIKO AIKO-A655-MDE72Mw vs Jinko Solar JKM640N-66HL4M-BDV side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/aiko-aiko-a655-mde72mw/jinko-solar-jkm640n-66hl4m-bdv" image: "https://comparepv.com/og/compare/panels/aiko-aiko-a655-mde72mw/jinko-solar-jkm640n-66hl4m-bdv.png" updated: 2026-09-11 --- # AIKO AIKO-A655-MDE72Mw vs Jinko Solar JKM640N-66HL4M-BDV AIKO-A655-MDE72Mw leads on the differences that matter The largest is temperature coefficient: 0.030 %/°C better in heat. 4 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [AIKO AIKO-A655-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a655-mde72mw) | [Jinko Solar JKM640N-66HL4M-BDV](https://comparepv.com/panel/jinko-solar-jkm640n-66hl4m-bdv) | | Manufacturer | AIKO | Jinko Solar | | Power | 655 Wp | 640 Wp | | Efficiency | 24.20 % | 23.69 % | | Technology | Back Contact | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | AIKO-A655-MDE72Mw | JKM640N-66HL4M-BDV | Difference | | --- | --- | --- | --- | | Temperature coefficient | -0.260 %/°C | -0.290 %/°C | +0.030 %/°C for AIKO-A655-MDE72Mw | | Module efficiency | 24.20 % | 23.69 % | +0.51 pp for AIKO-A655-MDE72Mw | | Weight | 29.0 kg | 32.4 kg | -3.4 kg for AIKO-A655-MDE72Mw | | Weight per kWp | 44.3 kg/kWp | 50.6 kg/kWp | -6.4 kg/kWp for AIKO-A655-MDE72Mw | | Product warranty | 15 yrs | 12 yrs | +3 yrs for AIKO-A655-MDE72Mw | | Open-circuit voltage | 54.50 V | 49.88 V | 4.62 V apart | | Power density | 242.5 Wp/m² | 236.9 Wp/m² | +5.6 Wp/m² for AIKO-A655-MDE72Mw | | Rated power | 655 Wp | 640 Wp | +15 W for AIKO-A655-MDE72Mw | | Cell technology | Back Contact | N-type | Back Contact vs N-type | | Short-circuit current | 15.18 A | 16.32 A | 1.14 A apart | | Annual degradation | 0.35 %/yr | 0.40 %/yr | -0.05 %/yr for AIKO-A655-MDE72Mw | | Cell count | 144 | 132 | 12 cells apart | | Voltage at max power | 45.20 V | 41.30 V | 3.90 V apart | | Bifacial | No | Yes | No vs Yes | | Current at max power | 14.50 A | 15.50 A | 1.00 A apart | ## Every compared parameter | Parameter | AIKO-A655-MDE72Mw | JKM640N-66HL4M-BDV | | --- | --- | --- | | Rated power | 655 Wp | 640 Wp | | Module efficiency | 24.20 % | 23.69 % | | Power density | 242.5 Wp/m² | 236.9 Wp/m² | | Open-circuit voltage | 54.50 V | 49.88 V | | Voltage at max power | 45.20 V | 41.30 V | | Short-circuit current | 15.18 A | 16.32 A | | Current at max power | 14.50 A | 15.50 A | | Temperature coefficient | -0.260 %/°C | -0.290 %/°C | | Dimensions | 2382x1134x30 mm | 2382x1134x30 mm | | Module area | 2.701 m² | 2.701 m² | | Weight | 29.0 kg | 32.4 kg | | Weight per kWp | 44.3 kg/kWp | 50.6 kg/kWp | | Product warranty | 15 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.35 %/yr | 0.40 %/yr | | Cell technology | Back Contact | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 132 | | Bifacial | No | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, AIKO-A655-MDE72Mw:** 22,148 kWh - **Cumulative output, JKM640N-66HL4M-BDV:** 21,473 kWh - **Gap:** 675 kWh ## Output when hot | Condition | Cell temperature | AIKO-A655-MDE72Mw | JKM640N-66HL4M-BDV | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 655 W | 640 W | 100.0% of rated power | | Cool, bright day | 40 °C | 629 W | 612 W | 95.7% of rated power | | Typical summer roof | 55 °C | 604 W | 584 W | 91.3% of rated power | | Hot roof | 70 °C | 578 W | 556 W | 87.0% of rated power | ## Against the whole database | Measure | AIKO-A655-MDE72Mw | JKM640N-66HL4M-BDV | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #206 | #612 | 14,129 | AIKO-A655-MDE72Mw leads by 406 places | | Power density | #192 | #553 | 14,129 | AIKO-A655-MDE72Mw leads by 361 places | | Heat behaviour | #515 | #2,220 | 14,129 | AIKO-A655-MDE72Mw leads by 1,705 places | | Weight | #415 | #4,091 | 14,129 | AIKO-A655-MDE72Mw leads by 3,676 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #676 | #1,545 | 14,129 | AIKO-A655-MDE72Mw leads by 869 places | ## Questions ### Which panel is better: AIKO AIKO-A655-MDE72Mw or Jinko Solar JKM640N-66HL4M-BDV? According to our database: **AIKO AIKO-A655-MDE72Mw** has higher module efficiency (**24.20%** vs **23.69%**); **AIKO AIKO-A655-MDE72Mw** tolerates heat better (temp coeff **-0.260%/°C** vs **-0.290%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of AIKO AIKO-A655-MDE72Mw and Jinko Solar JKM640N-66HL4M-BDV? **AIKO AIKO-A655-MDE72Mw** has a module efficiency of **24.20%**, while **Jinko Solar JKM640N-66HL4M-BDV** is **23.69%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does AIKO AIKO-A655-MDE72Mw use vs Jinko Solar JKM640N-66HL4M-BDV? **AIKO AIKO-A655-MDE72Mw** uses **Back Contact** cells; **Jinko Solar JKM640N-66HL4M-BDV** uses **N-type**. 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 AIKO AIKO-A655-MDE72Mw and Jinko Solar JKM640N-66HL4M-BDV? **AIKO AIKO-A655-MDE72Mw** has a **30 years** power warranty; **Jinko Solar JKM640N-66HL4M-BDV** 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 AIKO AIKO-A655-MDE72Mw and Jinko Solar JKM640N-66HL4M-BDV bifacial panels? **Jinko Solar JKM640N-66HL4M-BDV** is bifacial (captures light from both faces); **AIKO AIKO-A655-MDE72Mw** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [AIKO AIKO-A655-MDE72Mw vs AIKO AIKO-A680-MDE72Mw](https://comparepv.com/compare/aiko-aiko-a655-mde72mw/aiko-aiko-a680-mde72mw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A655-MDE72Mw vs AIKO AIKO-A675-MDE72Mw](https://comparepv.com/compare/aiko-aiko-a655-mde72mw/aiko-aiko-a675-mde72mw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A655-MDE72Mw vs AIKO AIKO-A670-MDE72Mw](https://comparepv.com/compare/aiko-aiko-a655-mde72mw/aiko-aiko-a670-mde72mw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A655-MDE72Mw vs AIKO AIKO-A665-MDE72Mw](https://comparepv.com/compare/aiko-aiko-a655-mde72mw/aiko-aiko-a665-mde72mw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A655-MDE72Mw vs AIKO AIKO-A660-MDE72Mw](https://comparepv.com/compare/aiko-aiko-a655-mde72mw/aiko-aiko-a660-mde72mw) - One difference: module efficiency - [Jinko Solar JKM640N-66HL4M-BDV vs Jinko Solar JKM635N-66HL4M-BDV](https://comparepv.com/compare/jinko-solar-jkm640n-66hl4m-bdv/jinko-solar-jkm635n-66hl4m-bdv) - The same specification on paper --- Source: https://comparepv.com/compare/aiko-aiko-a655-mde72mw/jinko-solar-jkm640n-66hl4m-bdv 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.