--- title: "Jetion JT730SLk(B) vs Jetion JT755SLk(B) - Solar Panel Comparison | ComparePV" description: "Compare Jetion JT730SLk(B) vs Jetion JT755SLk(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-jt730slk-b/jetion-jt755slk-b" updated: 2026-09-11 --- # Jetion JT730SLk(B) vs Jetion JT755SLk(B) JT755SLk(B) leads on the differences that matter The largest is module efficiency: 0.80 pp more efficient. 15 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Jetion JT730SLk(B)](https://comparepv.com/panel/jetion-jt730slk-b) | [Jetion JT755SLk(B)](https://comparepv.com/panel/jetion-jt755slk-b) | | Manufacturer | Jetion | Jetion | | Power | 730 Wp | 755 Wp | | Efficiency | 23.50 % | 24.30 % | | Technology | HJT | HJT | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | JT730SLk(B) | JT755SLk(B) | Difference | | --- | --- | --- | --- | | Module efficiency | 23.50 % | 24.30 % | +0.80 pp for JT755SLk(B) | | Power density | 235.0 Wp/m² | 243.1 Wp/m² | +8.0 Wp/m² for JT755SLk(B) | | Rated power | 730 Wp | 755 Wp | +25 W for JT755SLk(B) | | Current at max power | 17.16 A | 17.66 A | 0.50 A apart | ## Every compared parameter | Parameter | JT730SLk(B) | JT755SLk(B) | | --- | --- | --- | | Rated power | 730 Wp | 755 Wp | | Module efficiency | 23.50 % | 24.30 % | | Power density | 235.0 Wp/m² | 243.1 Wp/m² | | Open-circuit voltage | 50.50 V | 50.75 V | | Voltage at max power | 42.56 V | 42.76 V | | Short-circuit current | 18.35 A | 18.80 A | | Current at max power | 17.16 A | 17.66 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 | 49.9 kg/kWp | 48.2 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, JT730SLk(B):** 24,874 kWh - **Cumulative output, JT755SLk(B):** 25,726 kWh - **Gap:** 852 kWh ## Output when hot | Condition | Cell temperature | JT730SLk(B) | JT755SLk(B) | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 730 W | 755 W | 100.0% of rated power | | Cool, bright day | 40 °C | 704 W | 728 W | 96.4% of rated power | | Typical summer roof | 55 °C | 677 W | 701 W | 92.8% of rated power | | Hot roof | 70 °C | 651 W | 673 W | 89.2% of rated power | ## Against the whole database | Measure | JT730SLk(B) | JT755SLk(B) | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #716 | #131 | 14,005 | JT755SLk(B) leads by 585 places | | Power density | #800 | #136 | 14,005 | JT755SLk(B) leads by 664 places | | Heat behaviour | #13 | #13 | 14,005 | Tied - the same position in the database | | Weight | #3,250 | #2,105 | 14,005 | JT755SLk(B) leads by 1,145 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #193 | #50 | 14,005 | JT755SLk(B) leads by 143 places | ## Questions ### Which panel is better: Jetion JT730SLk(B) or Jetion JT755SLk(B)? According to our database: **Jetion JT755SLk(B)** has higher module efficiency (**24.30%** vs **23.50%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Jetion JT730SLk(B) and Jetion JT755SLk(B)? **Jetion JT730SLk(B)** has a module efficiency of **23.50%**, while **Jetion JT755SLk(B)** is **24.30%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Jetion JT730SLk(B) use vs Jetion JT755SLk(B)? **Jetion JT730SLk(B)** uses **HJT** cells; **Jetion JT755SLk(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 JT730SLk(B) and Jetion JT755SLk(B)? **Jetion JT730SLk(B)** has a **30 years** power warranty; **Jetion JT755SLk(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 JT730SLk(B) and Jetion JT755SLk(B) bifacial panels? Both **Jetion JT730SLk(B)** and **Jetion JT755SLk(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 JT730SLk(B) vs Jetion JT750SLk(B)](https://comparepv.com/compare/jetion-jt730slk-b/jetion-jt750slk-b) - 3 differences, the largest is module efficiency - [Jetion JT730SLk(B) vs Jetion JT745SLk(B)](https://comparepv.com/compare/jetion-jt730slk-b/jetion-jt745slk-b) - 3 differences, the largest is module efficiency - [Jetion JT730SLk(B) vs Jetion JT740SLk(B)](https://comparepv.com/compare/jetion-jt730slk-b/jetion-jt740slk-b) - 3 differences, the largest is module efficiency - [Jetion JT730SLk(B) vs Jetion JT735SLk(B)](https://comparepv.com/compare/jetion-jt730slk-b/jetion-jt735slk-b) - One difference: module efficiency - [Jetion JT730SLk(B) vs Jetion JT725SLk(B)](https://comparepv.com/compare/jetion-jt730slk-b/jetion-jt725slk-b) - The same specification on paper - [Jetion JT730SLk(B) vs Jetion JT720SLk(B)](https://comparepv.com/compare/jetion-jt730slk-b/jetion-jt720slk-b) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/jetion-jt730slk-b/jetion-jt755slk-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.