--- title: "Jetion JT595SZk(B) Solar Panel: Specs & Datasheet | ComparePV" description: "Jetion JT595SZk(B) solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/jetion-jt595szk-b" image: "https://comparepv.com/og/panel/jetion-jt595szk-b.png" updated: 2026-09-11 --- # Jetion JT595SZk(B) Solid all-round for its segment 32 panels in the segment HJT 550-600 W ## Identity - **Manufacturer:** Jetion - **Model:** JT595SZk(B) - **Series:** JT SZk(B) - **Rated power:** 595 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 550-600 W (32 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 595 W | 585 W | Strong - top 9% | | | Module efficiency | 22.80% | 22.48% | Typical | 2,769 | | Power density | 227.7 | 224.8 | Typical | 2,941 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight (kg) | 32.6 kg | 32.6 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 22.48% | Typical | 2,769 | | Power density | 227.7 | 224.8 | Typical | 2,941 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight per kWp | 54.8 | 55.2 | Typical | 9,277 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Utility-scale, commercial, hot-climate and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 595 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 35.30 V - **Current at Pmax (Imp):** 16.86 A - **Open-circuit voltage (Voc):** 41.75 V - **Short-circuit current (Isc):** 17.66 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:** 110 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 2384 mm - **Width:** 1096 mm - **Thickness:** 35 mm - **Weight:** 32.6 kg - **Area:** 2.61 m2 - **Power density:** 227.7 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:** 537 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2769 of 14129 | | Power density | 2941 of 14129 | | Temperature coefficient | 13 of 14129 | | Weight | 9277 of 14129 | | Warranty | 21 of 14129 | ## Pros - **High-efficiency N-type HJT cells** - 22.2-23% efficiency thanks to heterojunction HJT N-type cells places the series near the top of the segment (Tongwei 72HD 23.2%, Powitt M10 23.23%), clearly above Talesun BISTAR (21.5%). The heterojunction structure also improves yield under diffuse light, relevant in Poland's often overcast climate. - **Bifacial dual-side energy generation** - Glass-glass construction with bifacial cells enables additional energy gain from reflected light, particularly cost-effective when mounted on light-colored roofs or ground-mount farm installations. - **30-year linear power warranty** - The manufacturer guarantees power retention above 87.4% after 30 years, matching the standard offered by leading tier-1 manufacturers (LONGi, JinkoSolar, Trina) for premium N-type modules. - **Low temperature coefficient and LID/PID resistance** - HJT technology features a lower temperature coefficient than conventional PERC, limiting power losses during heat waves. LID and PID resistance ensures stable energy output and minimal degradation over time. - **BNEF Tier-1 status and manufacturer track record** - Jetion Solar (founded in 2004) holds Tier-1 status on the BloombergNEF Module Maker Tiering System, confirming project bankability and easing financing through commercial banks. ## Cons - **15-year product warranty trails premium trend** - The 15-year product warranty is shorter than what some premium HJT manufacturers now offer in 2026 (up to 25 years), even though the power warranty extends to 30 years. This can be a differentiating factor versus competing N-type series. - **Peak efficiency slightly below segment leaders** - The upper efficiency bound (23%) is marginally lower than peer comparables Powitt M10 (23.23%) and Tongwei 72HD (23.2%) at the same 600W max power, meaning slightly lower yield per m² for an identical installation footprint. ## About this series The JT SZk(B) series consists of dual-glass monocrystalline modules built on **HJT heterojunction technology** with N-type cells, combining a thin-film heterojunction structure with half-cut monocrystalline silicon in a multi-busbar layout. This design delivers high conversion efficiency even under diffuse light, making these panels a strong fit for Poland's climate with its frequent cloud cover. The use of **bifacial power generation** allows for extra energy yield by capturing light reflected off the ground, which is especially effective in installations on bright rooftops or ground-mount systems. The series also stands out for its **low temperature coefficient**, keeping power losses to a minimum during hot summer days and ensuring stable output when temperatures rise. The glass-glass construction along with resistance to LID and PID translates into long-term durability and minimal power degradation over time. The panels withstand **mechanical loads of up to 5400 Pa of snow and 2400 Pa of wind**, ensuring safety in demanding weather conditions. The manufacturer backs the series with a **30-year power warranty**, guaranteeing performance degradation below 10 percent, making this series attractive for both residential investors and commercial solar farm projects. ## Notable figures - At 22.8% efficiency, this panel is on par with typical \*\*HJT 550-600W\*\* modules - Power density of 227.7 W/m² matches the \*\*HJT 550-600W\*\* median - Temperature coefficient of -0.24%/°C matches the \*\*HJT 550-600W\*\* median - Bifacial design (85% factor) captures reflected light - adds 4-13% yield on ground-mount or white roof - #2769 for efficiency, #13 for temperature performance out of 14129 panels ## Questions ### How does HJT cell technology in the Jetion JT SZk(B) series differ from standard monocrystalline PERC cells? HJT (heterojunction) cells combine a thin amorphous silicon layer with N-type monocrystalline silicon, delivering higher conversion efficiency and better performance under low or diffuse light than conventional PERC cells. HJT also has a lower temperature coefficient, so the panel loses less power on hot days, while the half-cut, multi-busbar layout reduces resistive losses and improves resistance to microcracks. ### Is it worth installing Jetion JT SZk(B) bifacial panels on a light-colored roof or on the ground? Yes, bifacial power generation captures light reflected off the surface below, so mounting on a light-colored roof, gravel, or a ground-mount system with adequate clearance can add several to over a dozen percent extra energy yield compared to a monofacial module. The effect grows with the reflectivity and brightness of the surface beneath the panels. ### What warranty comes with the Jetion JT SZk(B) series and what does it cover? The manufacturer provides a 15-year product warranty and a 30-year linear power warranty, guaranteeing power output stays above 90 percent by the end of that period. The glass-glass construction along with LID and PID resistance further limit power degradation over time, making this series one of the more durable options on the market. ### Can Jetion JT SZk(B) panels withstand heavy snow loads and strong wind? Yes, modules in this series are certified for mechanical loads up to 5400 Pa of snow and 2400 Pa of wind, well above typical requirements for roofs in Central Europe. The glass-glass construction keeps panels rigid and mechanically resistant even under heavy winter snow cover. ### What is the maximum power output in the Jetion JT SZk(B) series, and how many panels are needed for a typical 10 kWp system? The highest-output variants in this series reach up to 600 Wp, meaning a 10 kWp system needs only about 17 panels, reducing the roof area and number of mounting points required compared to older, lower-efficiency modules. ### Is Jetion a tier 1 manufacturer, and is it worth buying panels made in China? Jetion is classified as a tier 1 manufacturer under Bloomberg NEF, reflecting financial stability and bankability for projects using these panels, regardless of manufacturing location in China. Tier 1 status matters for financed installations, since banks and lenders are more willing to approve equipment from proven, large-scale manufacturers. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/d0a6a065dad44af59faed8607b625e6b-36f68633254f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +50 W, lighter, +2.2 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -35 W, lighter, +2.0 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +45 W, lighter, +2.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -40 W, lighter, +1.8 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +40 W, lighter, +1.8 pp | | [Jetion JT580SZk(B)](https://comparepv.com/panel/jetion-jt580szk-b) | 580 W | -15 W, -0.6 pp | | [Jetion JT585SZk(B)](https://comparepv.com/panel/jetion-jt585szk-b) | 585 W | -10 W, -0.4 pp | | [Jetion JT590SZk(B)](https://comparepv.com/panel/jetion-jt590szk-b) | 590 W | Very close match | | [Jetion JT600SZk(B)](https://comparepv.com/panel/jetion-jt600szk-b) | 600 W | Very close match | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +85 W, lighter, +2.4 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +80 W, lighter, +2.2 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +105 W, hotter, +2.2 pp | | [WINAICO WST-675BKX72-A2](https://comparepv.com/panel/winaico-wst-675bkx72-a2) | 675 W | +80 W, hotter, +2.2 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +100 W, hotter, +2.1 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +75 W, lighter, +2.0 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +75 W, lighter, +2.0 pp | --- Source: https://comparepv.com/panel/jetion-jt595szk-b Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.