--- title: "Jetion JT725SLk(B) vs Jetion JT730SLk(B) - Solar Panel Comparison | ComparePV" description: "Compare Jetion JT725SLk(B) vs Jetion JT730SLk(B) side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt730slk-b" updated: 2026-09-11 --- # Jetion JT725SLk(B) vs Jetion JT730SLk(B) Identical on every published parameter All 19 comparable parameters agree. 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 | [Jetion JT725SLk(B)](https://comparepv.com/panel/jetion-jt725slk-b) | [Jetion JT730SLk(B)](https://comparepv.com/panel/jetion-jt730slk-b) | | Manufacturer | Jetion | Jetion | | Power | 725 Wp | 730 Wp | | Efficiency | 23.40 % | 23.50 % | | Technology | HJT | HJT | ## Every compared parameter | Parameter | JT725SLk(B) | JT730SLk(B) | | --- | --- | --- | | Rated power | 725 Wp | 730 Wp | | Module efficiency | 23.40 % | 23.50 % | | Power density | 233.4 Wp/m² | 235.0 Wp/m² | | Open-circuit voltage | 50.45 V | 50.50 V | | Voltage at max power | 42.52 V | 42.56 V | | Short-circuit current | 18.26 A | 18.35 A | | Current at max power | 17.06 A | 17.16 A | | Temperature coefficient | -0.240 %/°C | -0.240 %/°C | | Dimensions | 2384x1303x33 mm | 2384x1303x33 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 36.4 kg | 36.4 kg | | Weight per kWp | 50.2 kg/kWp | 49.9 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.30 %/yr | 0.30 %/yr | | Cell technology | HJT | HJT | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | 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 (-0.240 %/°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, JT725SLk(B):** 24,704 kWh - **Cumulative output, JT730SLk(B):** 24,874 kWh - **Gap:** 170 kWh ## Output when hot | Condition | Cell temperature | JT725SLk(B) | JT730SLk(B) | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 725 W | 730 W | 100.0% of rated power | | Cool, bright day | 40 °C | 699 W | 704 W | 96.4% of rated power | | Typical summer roof | 55 °C | 673 W | 677 W | 92.8% of rated power | | Hot roof | 70 °C | 647 W | 651 W | 89.2% of rated power | ## Against the whole database | Measure | JT725SLk(B) | JT730SLk(B) | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #882 | #716 | 14,005 | JT730SLk(B) leads by 166 places | | Power density | #936 | #800 | 14,005 | JT730SLk(B) leads by 136 places | | Heat behaviour | #13 | #13 | 14,005 | Tied - the same position in the database | | Weight | #3,667 | #3,250 | 14,005 | JT730SLk(B) leads by 417 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #242 | #193 | 14,005 | JT730SLk(B) leads by 49 places | ## Questions ### Which panel is better: Jetion JT725SLk(B) or Jetion JT730SLk(B)? According to our database: **Jetion JT730SLk(B)** has higher module efficiency (**23.50%** vs **23.40%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Jetion JT725SLk(B) and Jetion JT730SLk(B)? **Jetion JT725SLk(B)** has a module efficiency of **23.40%**, while **Jetion JT730SLk(B)** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Jetion JT725SLk(B) use vs Jetion JT730SLk(B)? **Jetion JT725SLk(B)** uses **HJT** cells; **Jetion JT730SLk(B)** uses **HJT**. 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 Jetion JT725SLk(B) and Jetion JT730SLk(B)? **Jetion JT725SLk(B)** has a **30 years** power warranty; **Jetion JT730SLk(B)** 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 Jetion JT725SLk(B) and Jetion JT730SLk(B) bifacial panels? Both **Jetion JT725SLk(B)** and **Jetion JT730SLk(B)** 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 - [Jetion JT725SLk(B) vs Jetion JT755SLk(B)](https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt755slk-b) - 5 differences, the largest is module efficiency - [Jetion JT725SLk(B) vs Jetion JT750SLk(B)](https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt750slk-b) - 4 differences, the largest is module efficiency - [Jetion JT725SLk(B) vs Jetion JT745SLk(B)](https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt745slk-b) - 3 differences, the largest is module efficiency - [Jetion JT725SLk(B) vs Jetion JT740SLk(B)](https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt740slk-b) - 3 differences, the largest is module efficiency - [Jetion JT725SLk(B) vs Jetion JT735SLk(B)](https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt735slk-b) - 3 differences, the largest is module efficiency - [Jetion JT725SLk(B) vs Jetion JT720SLk(B)](https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt720slk-b) - One difference: module efficiency --- Source: https://comparepv.com/compare/jetion-jt725slk-b/jetion-jt730slk-b 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.