--- title: "JA Solar JAM60D10-335/TB/1500V Solar Panel: Specs & Datasheet | ComparePV" description: "JA Solar JAM60D10-335/TB/1500V solar panel. Specs: 19.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-335-tb-1500v" image: "https://comparepv.com/og/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-335-tb-1500v.png" updated: 2026-09-11 --- # JA Solar JAM60D10-335/TB/1500V Middle of its segment, heavy for its output 236 panels in the segment N-type 235-435 W ## Identity - **Manufacturer:** JA Solar - **Model:** JAM60D10-335/TB/1500V - **Series:** JAM60D10 335-355/TB/1500V - **Rated power:** 335 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 235-435 W (236 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 335 W | 415 W | Weak - bottom 6% | | | Module efficiency | 19.50% | 21.27% | Weak - bottom 18% | 12,751 | | Power density | 194.8 | 212.5 | Weak - bottom 16% | 12,764 | | Temperature coefficient | -0.310 | -0.300 | Typical | 8,069 | | Weight (kg) | 22.0 kg | 22.0 kg | Weak - bottom 13% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.50% | 21.27% | Weak - bottom 18% | 12,751 | | Power density | 194.8 | 212.5 | Weak - bottom 16% | 12,764 | | Temperature coefficient | -0.310 | -0.300 | Typical | 8,069 | | Weight per kWp | 65.7 | 52.4 | Weak - bottom 13% | 13,209 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **65.7 kg per kWp** - Bottom 13% of the N-type 235-435 W segment, against a median of 52.4. - **194.8 watts per square metre** - Bottom 16% of the N-type 235-435 W segment, against a median of 212.5. - **19.50% module efficiency** - Bottom 18% of the N-type 235-435 W segment, against a median of 21.27%. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Weight-limited structures, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 335 W - **Efficiency:** 19.50 % - **Voltage at Pmax (Vmp):** 34.51 V - **Current at Pmax (Imp):** 9.71 A - **Open-circuit voltage (Voc):** 42.02 V - **Short-circuit current (Isc):** 10.23 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.310 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.039 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 120 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1711 mm - **Width:** 1005 mm - **Thickness:** 30 mm - **Weight:** 22.0 kg - **Area:** 1.72 m2 - **Power density:** 194.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 84.0 % - **First-year degradation:** 1.50 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 281 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12751 of 14129 | | Power density | 12764 of 14129 | | Temperature coefficient | 8069 of 14129 | | Weight | 13209 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Efficiency up to 20.6% - well above segment peers** - Peak module efficiency of 20.6% clearly outperforms peer comparables in this segment: Runtech RT-340-355P (18.49%), Solitek SOLID Solrif (18.0%), and Hiwatt HW-P372H (17.8%). The gap of +2.1-2.8 percentage points translates to fewer modules required per kilowatt of installed capacity on a given roof area. - **N-type cells: lower LID and better temperature coefficient** - N-type cells deliver a lower power temperature coefficient Pmax of -0.31%/°C versus a typical -0.35%/°C for PERC, yielding approximately 1.4% higher output at real-world module temperatures of 65-70°C. Additionally, N-type cells do not exhibit classic LID (Light-Induced Degradation), which can reduce PERC module output by 1-2% in the first year of operation. - **Bifacial double-glass with half-cut cells (120 cells)** - The TB (Twin glass Bifacial) design captures energy from the module's rear side - typical bifacial gain in ground-mounted systems with a light-colored albedo surface ranges from 5-15%. Dual-tempered glass improves mechanical resistance and eliminates backsheet degradation risk. The half-cut layout (120 cells) reduces resistive losses and limits the impact of partial shading on the full string. - **30-year linear power warranty (≥84% after 30 years)** - JA Solar guarantees ≥84% of nominal power after 30 years of operation - a longer horizon than the then-prevailing industry standard of 25 years for most PERC modules. For projects where LCOE is calculated over a 25-30 year period, this directly reduces financial risk and facilitates bankable project financing. - **1500V system voltage: longer strings, lower BoS costs** - Support for 1500V system voltage enables longer DC strings in C&I and utility-scale PV projects, directly reducing BoS costs (DC cabling, string combiners) and simplifying system design. The IP68-rated junction box further reduces the risk of failures under challenging weather conditions. ## Cons - **Series discontinued since 2022** - The JAM60D10 335-355/TB/1500V series ended production in 2022. Availability of new modules is limited to distributor stock. Expanding an installation after 2024 may make it difficult or impossible to match the electrical parameters of existing modules. Warranty service and spare part availability will become increasingly uncertain over time. - **12-year product warranty - below 2026 market standard** - In 2026, leading Tier-1 manufacturers (LONGi, Jinko Tiger Neo, JA Deep Blue 4.0) offer 25-year product warranties as standard. The JAM60D10 series covers only 12 years, meaning that for a planned 25-30-year investment horizon, manufacturer protection lapses well before mid-life. For new project procurement, this gap may favor more recent series. ## About this series JA Solar JAM60D10 335-355/TB/1500V modules are designed for reliable operation in installations where predictable yield and resilience to typical operational issues are key. The application of **half-cut construction (120 cells)** helps minimize losses and better handle partial shading, which often determines profitability in Polish conditions. The refined connection architecture and safety features translate to **high reliability** and stable module string operation. For installers and designers, **system compatibility with 1500 V installations** will also be important, facilitating the construction of longer strings in commercial and industrial projects. The modules feature a **watertight junction box with IP68 rating**, reducing the risk of problems in harsh weather conditions. This makes them an excellent choice for commercial rooftops, PV farms, and demanding residential installations where durability and consistent quality take precedence over "spec sheet parameters". ## Notable figures - At 19.5% efficiency, this panel is on par with typical \*\*N-type 0-400W\*\* modules - At 194.8 W/m² power density, roof space requirements are typical for \*\*N-type 0-400W\*\* panels - At -0.31%/°C, hot weather performance is typical for \*\*N-type 0-400W\*\* panels - Bifaciality factor of 75% can add 4-11% extra yield with reflective mounting surface - #12751 for efficiency, #8069 for temperature performance out of 14129 panels ## Questions ### Is the JA Solar JAM60D10 335-355/TB/1500V series still available for purchase? The JAM60D10 335-355/TB/1500V series has been discontinued and is no longer regularly stocked by solar distributors. Occasional clearance or secondary-market units may appear, but sourcing additional panels to expand or repair an existing system will be difficult. Buyers should consider a current JA Solar series with comparable specifications instead. ### What warranty does JA Solar provide for the JAM60D10 355W modules? JA Solar offers a 12-year product warranty covering material and workmanship defects. The linear power warranty runs for 30 years, guaranteeing at least 84% of nominal power output at end of life. In year one, output is guaranteed at a minimum of 97.5%. This is a solid warranty package from a Tier 1 manufacturer and supports reliable long-term yield forecasting for commercial and residential projects. ### What does the TB designation mean in JAM60D10, and is the panel bifacial? TB stands for Twin-glass Bifacial. The module uses two glass layers instead of a rear backsheet and captures light from both the front and rear surfaces. With a reflective ground cover such as light gravel, concrete, or snow, bifacial gain typically adds 5-15% extra energy yield above the rated front-side power. The dual-glass construction also improves mechanical strength and eliminates PID risk. ### Are the JAM60D10 335-355/TB modules suitable for commercial rooftop and utility-scale PV projects? Yes, the series is engineered for commercial and industrial applications. The 1500 V system voltage rating enables longer strings, reducing BoS costs for large-scale projects. The IP68-rated junction box ensures reliable operation in demanding weather conditions. The half-cut 120-cell layout minimizes mismatch losses caused by partial shading, which is particularly relevant for rooftop installations with obstructions. ### How do the N-type JAM60D10 modules perform in winter and low-temperature conditions? The N-type cells used in this series have a lower temperature coefficient of Pmax (approx. -0.31%/°C) compared to conventional P-type PERC modules (-0.35 to -0.40%/°C). This means less power loss on cold, sunny days typical of Central European winters. N-type cells are also inherently resistant to LID (Light Induced Degradation), maintaining higher output throughout the module's operational lifetime. ### What are the dimensions and weight of the JA Solar JAM60D10 355/TB/1500V panel - will it fit on a standard commercial rooftop? The module measures approximately 1711×1005×30 mm and weighs around 22 kg. This footprint is comparable to a standard 60-cell format, making it compatible with most racking systems used on industrial and commercial buildings. Because the twin-glass (TB) construction adds some weight over backsheet equivalents, a structural load assessment of the roof is recommended before installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/20200619044322484-cfb35d8cb2ae.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | Lighter, +3.8 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Lighter, +3.8 pp, -5 yr warranty | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Lighter, +3.6 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Lighter, +3.6 pp, -5 yr warranty | | [Heckert Solar ZEUS 3.2 285WP FullBlack](https://comparepv.com/panel/heckert-solar-zeus-3-2-285wp-fullblack) | 285 W | -50 W, lighter, +3.6 pp | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | -50 W, lighter, +3.5 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -35 W, lighter, +3.5 pp | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | -15 W, lighter, +3.5 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +3.5 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | +25 W, lighter, +3.5 pp | | [JA Solar JAM60D10-320/MB/1500V](https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-320-mb-1500v) | 320 W | -15 W, hotter, -0.9 pp | | [JA Solar JAM60D10-325/MB/1500V](https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-325-mb-1500v) | 325 W | -10 W, hotter, -0.6 pp | | [JA Solar JAM60D10-330/MB/1500V](https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-330-mb-1500v) | 330 W | Hotter, -0.3 pp | | [JA Solar JAM60D10-340/TB/1500V](https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-340-tb-1500v) | 340 W | +0.3 pp | | [JA Solar JAM60D10-345/TB/1500V](https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-345-tb-1500v) | 345 W | +10 W, +0.6 pp | | [JA Solar JAM60D10-350/TB/1500V](https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-350-tb-1500v) | 350 W | +15 W, +0.9 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +105 W, cooler, +3.4 pp | --- Source: https://comparepv.com/panel/shanghai-ja-solar-technology-co-ltd-jam60d10-335-tb-1500v 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.