--- title: "Jetion JT725SLk(B) 725W Solar Panel - Specs & Review | ComparePV" description: "Jetion JT725SLk(B) 725W solar panel. Specs: 23.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/jetion-jt725slk-b" updated: 2026-09-11 --- # Jetion JT725SLk(B) Light for its output, no clear weak spot 222 panels in the segment HJT 700-750 W ## Identity - **Manufacturer:** Jetion - **Model:** JT725SLk(B) - **Series:** JT SLk(B) 715-755W - **Rated power:** 725 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 700-750 W (222 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 725 W | 715 W | Strong - top 24% | | | Module efficiency | 23.40% | 23.02% | Strong - top 20% | 882 | | Power density | 233.4 | 230.2 | Strong - top 24% | 936 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight (kg) | 36.4 kg | 38.3 kg | Strong - top 4% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.40% | 23.02% | Strong - top 20% | 882 | | Power density | 233.4 | 230.2 | Strong - top 24% | 936 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight per kWp | 50.2 | 53.6 | Strong - top 4% | 3,667 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **50.2 kg per kWp** - Top 4% of the HJT 700-750 W segment, against a median of 53.6. Ranked 3,667th in the whole database. - **23.40% module efficiency** - Top 20% of the HJT 700-750 W segment, against a median of 23.02%. - **233.4 watts per square metre** - Top 24% of the HJT 700-750 W segment, against a median of 230.2. - **Best for:** Utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 725 W - **Efficiency:** 23.40 % - **Voltage at Pmax (Vmp):** 42.52 V - **Current at Pmax (Imp):** 17.06 A - **Open-circuit voltage (Voc):** 50.45 V - **Short-circuit current (Isc):** 18.26 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.240 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 33 mm - **Weight:** 36.4 kg - **Area:** 3.11 m2 - **Power density:** 233.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 90.3 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.30 % - **Output after 30 years:** 655 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 882 of 14005 | | Power density | 936 of 14005 | | Temperature coefficient | 13 of 14005 | | Weight | 3667 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Very low power temperature coefficient** - The Pmax temperature coefficient is -0.24%/°C, better than the typical -0.34% to -0.38%/°C seen in PERC cells. This translates into lower power losses on hot days and higher annual energy yield in high-irradiance climates. - **High bifaciality factor of ~90%** - The manufacturer specifies a bifaciality factor of 90%, a competitive result versus peers such as AOX-132G12HC (24.2% efficiency), enabling extra rear-side energy gain in ground-mounted installations on high-albedo surfaces. - **30-year linear power warranty** - A 30-year power warranty and 15-year product warranty match the premium standard for the HJT segment, giving investors predictable long-term power degradation and lower LCOE risk. - **Dual-glass construction with 132 half-cells** - Dual-glass design combined with 132 monocrystalline half-cut cells reduces LID and PID degradation and improves mechanical strength, important for high snow and wind load conditions in utility-scale installations. - **Efficiency up to 24.3%, competitive within HJT segment** - The 23-24.3% efficiency range sits in the upper half of comparable models (Gamko 24.14%, SunEvo 24.1%, Ocean Solar 24.2%), confirming the series' position as a high-end product in the 715-755W segment. ## Cons - **Series discontinued** - The JT SLk(B) 715-755W series, launched in 2022, has been discontinued. This means limited availability of replacement modules for future project stages and potential servicing challenges within the 15-year product warranty period. ## About this series The JT SLk(B) 715-755W series comprises advanced bifacial modules built on **HJT technology** combined with **n-type cells**, engineered to maximize energy yield in large-scale commercial and industrial installations. The design, based on 132 monocrystalline half-cut cells and multi-busbar interconnection, reduces resistive losses and improves current uniformity, resulting in stable performance even under partial shading. Thanks to **bifacial energy generation**, the panels capture additional power from reflected irradiance reaching the rear side of the module, making them especially attractive for ground-mount solar farms on high-albedo surfaces and elevated racking systems. The use of **glass on both sides** increases mechanical durability and extends module lifespan while limiting LID and PID degradation. A very **low power temperature coefficient** allows the series to maintain high efficiency even on hot days, when conventional panels lose output. This solution is aimed at investors and developers of utility-scale projects who expect low LCOE, predictable power degradation over a 30-year span, and structural resistance to high snow and wind loads. The JT SLk(B) series thus combines performance, durability, and mounting flexibility in a single product. ## Notable figures - At 23.4% efficiency, this panel is on par with typical \*\*HJT 700-750W\*\* modules - Power density of 233.4 W/m² packs 3.2 W/m² more into the same footprint vs \*\*HJT 700-750W\*\* median (230.2 W/m²) - At -0.24%/°C, hot weather performance is typical for \*\*HJT 700-750W\*\* panels - At 36.4 kg, this panel is 1.9 kg lighter than \*\*HJT 700-750W\*\* median (38.3 kg) - easier handling during installation - Bifaciality factor of 90% can add 4-14% extra yield with reflective mounting surface ## Questions ### Is the Jetion JT SLk(B) 715-755W series still available for purchase? No, the JT SLk(B) 715-755W series has been discontinued by Jetion. Panels may still be available from distributors as remaining stock, but investors planning new large-scale commercial installations should ask the manufacturer about the current HJT successor model with comparable power ratings. ### How does the HJT technology used in JT SLk(B) differ from conventional TOPCon or PERC panels? HJT (heterojunction) combines crystalline silicon with amorphous layers, delivering higher efficiency, a lower power temperature coefficient, and slower degradation over time than PERC or TOPCon cells. In practice, this means the JT SLk(B) panel loses less power on hot days and retains higher output after years of operation, resulting in lower LCOE for large-scale projects. ### What warranty comes with the JT SLk(B) 715-755W modules? Jetion provides a 15-year product warranty along with a 30-year power performance warranty. This covers manufacturing defects for a decade and a half and guarantees a predictable power degradation curve over three decades, which is a key factor when calculating ROI for utility-scale projects. ### What benefit does bifacial design offer in the JT SLk(B) series, and where does it perform best? Thanks to bifacial technology, the JT SLk(B) module captures additional energy from reflected light hitting the rear side of the panel. This works especially well on solar farms with light-colored ground cover, such as gravel or white membrane, and in ground-mounted installations with elevated racking, where reflected light can freely reach the rear cell surface. ### Do JT SLk(B) panels perform well in high temperatures and partial shading? Yes, the series benefits from a very low power temperature coefficient thanks to HJT technology, so it loses less efficiency on hot days compared to conventional modules. Additionally, the 132 monocrystalline half-cell design with multiple busbars improves current uniformity, reducing power losses caused by partial shading from clouds or nearby structures. ### Does the glass-glass construction of JT SLk(B) affect module durability and weight? Double-glass construction increases mechanical strength and rigidity, improves resistance to snow and wind loads, and reduces LID and PID degradation over time. This design is heavier than standard modules with a rear backsheet, so large-scale installation designs should account for a suitably reinforced mounting structure. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/eb9f65cfebe1436f9afe479a0175ebb9-5b16dda2bc0c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | -45 W, lighter, +1.8 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | -50 W, lighter, +1.6 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | -25 W, hotter, +1.6 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | -30 W, hotter, +1.5 pp | | [AIKO AIKO-A690-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a690-mae78dw) | 690 W | -35 W, hotter, +1.3 pp | | [AIKO AIKO-A685-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a685-mae78dw) | 685 W | -40 W, hotter, +1.1 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +35 W, hotter, +1.1 pp | | [AIKO AIKO-A680-MAH78Dw](https://comparepv.com/panel/aiko-aiko-a680-mah78dw) | 680 W | -45 W, hotter, +0.9 pp | | [Jetion JT710SPt(B)](https://comparepv.com/panel/jetion-jt710spt-b) | 710 W | -15 W, hotter, -0.5 pp | | [Jetion JT715SLk(B)](https://comparepv.com/panel/jetion-jt715slk-b) | 715 W | -10 W, -0.4 pp | | [Jetion JT720SPt(B)](https://comparepv.com/panel/jetion-jt720spt-b) | 720 W | Hotter | | [Jetion JT730SLk(B)](https://comparepv.com/panel/jetion-jt730slk-b) | 730 W | Very close match | | [Jetion JT735SLk(B)](https://comparepv.com/panel/jetion-jt735slk-b) | 735 W | +10 W, +0.3 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +80 W, heavier, +1.7 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +75 W, heavier, +1.5 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +70 W, heavier, +1.4 pp | --- Source: https://comparepv.com/panel/jetion-jt725slk-b Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.