--- title: "JA Solar JAM60D41-510/LB 510W Solar Panel - Specs & Review | ComparePV" description: "JA Solar JAM60D41-510/LB 510W solar panel. Specs: 23.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ja-solar-jam60d41-510-lb-1" updated: 2026-09-11 --- # JA Solar JAM60D41-510/LB Solid all-round for its segment 432 panels in the segment TOPCon 500-550 W ## Identity - **Manufacturer:** JA Solar - **Model:** JAM60D41-510/LB - **Series:** Deep Blue 4.0 Pro - **Rated power:** 510 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 500-550 W (432 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 510 W | 510 W | Typical | | | Module efficiency | 23.00% | 22.73% | Typical | 1,919 | | Power density | 230.3 | 227.4 | Typical | 1,849 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 27.3 kg | 27.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.00% | 22.73% | Typical | 1,919 | | Power density | 230.3 | 227.4 | Typical | 1,849 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 53.5 | 52.4 | Typical | 7,509 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 510 W - **Efficiency:** 23.00 % - **Voltage at Pmax (Vmp):** 37.31 V - **Current at Pmax (Imp):** 13.67 A - **Open-circuit voltage (Voc):** 44.25 V - **Short-circuit current (Isc):** 14.54 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 120 - **Bifacial:** yes ### Physical - **Length:** 1953 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.3 kg - **Area:** 2.21 m2 - **Power density:** 230.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 446 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1919 of 14005 | | Power density | 1849 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 7509 of 14005 | | Warranty | 21 of 14005 | ## About this series The JA Solar Deep Blue 4.0 Pro series represents a breakthrough in performance optimization thanks to the use of innovative **n-type Bycium+** cells. The use of rectangular M10R silicon wafers allows for better utilization of the module surface, which directly translates into higher unit power while maintaining compact dimensions. **SMBB (Super Multi-Busbar)** technology drastically reduces resistive losses and improves current flow, making these panels an ideal solution for investors seeking maximum yields from limited roof space. Unlike older generations, this series offers **exceptional resistance to LID and LeTID degradation**, guaranteeing stable energy production for decades. Thanks to a low temperature coefficient, these modules maintain high efficiency even on hot days, effectively solving the problem of power drops in the Polish summer climate. This is a choice dedicated to both advanced prosumer installations and large-scale PV farms, where **lowering the LCOE** is of key importance. Precise refinement of the construction makes Deep Blue 4.0 Pro beat the competition in terms of efficiency in low-light conditions, offering real gains where standard p-type cells lose their effectiveness. ## Notable figures - At 23.0% efficiency, this panel is on par with typical \*\*TOPCon 500-550W\*\* modules - Power density of 230.3 W/m² matches the \*\*TOPCon 500-550W\*\* median - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 500-550W\*\* panels - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - Ranked #1919 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the JA Solar Deep Blue 4.0 Pro come with? The Deep Blue 4.0 Pro carries a 12-year product warranty covering manufacturing defects and a 30-year linear power warranty. After 30 years, the module retains at least 87.4% of its rated power output. JA Solar's Tier 1 status and established market position provide confidence that warranty commitments will be honored throughout the full operational lifetime of your system. ### Do JA Solar Deep Blue 4.0 Pro panels lose significant power on hot summer days? The Deep Blue 4.0 Pro features an exceptionally low temperature coefficient of Pmax at just -0.29%/°C. When the module surface reaches 70°C on a hot day, power loss is approximately 12%, while older PERC modules typically lose 15–17%. This advantage is particularly valuable during peak summer months, translating into measurably higher energy yields compared to conventional p-type technology. ### How does TOPCon technology in the Deep Blue 4.0 Pro compare to standard PERC cells? The n-type Bycium+ TOPCon cells in Deep Blue 4.0 Pro achieve mass-production cell efficiency exceeding 25.3%, a level unattainable with PERC technology. The critical advantage is near-zero LID and LeTID degradation — a well-documented issue that reduced energy yields of p-type installations in their first years of operation. TOPCon delivers more stable, predictable power output across the full 30-year linear power warranty period. ### Does the bifacial design of the Deep Blue 4.0 Pro deliver real energy gains on a residential pitched roof? On a pitched roof, bifacial gain is limited since the rear side mainly captures diffuse and reflected light. Typical real-world bifacial yield improvement ranges from 3–8%, still adding several hundred extra kWh per year for a 10 kW system. Maximum bifacial gains are achieved in ground-mounted arrays over high-albedo surfaces or flat-roof ballasted systems using white membranes. ### How many JA Solar Deep Blue 4.0 Pro panels do I need for a 10 kW system? With a maximum power output of 510 Wp per module, exactly 20 panels are needed to reach 10 kW DC (20 × 510 Wp = 10,200 Wp). A standard 10 kW inverter handles this slight DC oversizing without issue. Before purchasing, your installer should verify roof orientation, usable surface area, and string layout against the inverter's MPPT input specifications. ### How do JA Solar Deep Blue 4.0 Pro panels perform under overcast skies and low-light conditions? Thanks to its n-type TOPCon Bycium+ cell architecture, the Deep Blue 4.0 Pro delivers noticeably higher efficiency at low irradiance levels (e.g., 200 W/m²) compared to standard PERC modules. The series earned a Very Good rating in pv magazine's module test, confirming superior energy yield under diffuse light. In climates with frequent cloud cover, this translates into a measurably higher annual energy output. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/54-jam60d41-lb-en-ja-solar-jam60d41-485-510-lb-datasheet-a96395d13566.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +2.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +1.8 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +50 W, cooler, +1.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +1.7 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +45 W, cooler, +1.6 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +1.5 pp | | [JA Solar JAM60D41 485/LB](https://comparepv.com/panel/ja-solar-jam60d41-485-lb) | 485 W | -25 W, -1.1 pp | | [JA Solar JAM60D41 490/LB](https://comparepv.com/panel/ja-solar-jam60d41-490-lb) | 490 W | -20 W, -0.9 pp | | [JA Solar JAM60D41 495/LB](https://comparepv.com/panel/ja-solar-jam60d41-495-lb) | 495 W | -15 W, -0.6 pp | | [JA Solar JAM60S40-500/LR](https://comparepv.com/panel/ja-solar-jam60s40-500-lr) | 500 W | -10 W, lighter, -0.4 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +40 W, lighter, +1.4 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +30 W, lighter, +1.4 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +30 W, lighter, +1.4 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +35 W, cooler, +1.3 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | +35 W, cooler, +1.2 pp | --- Source: https://comparepv.com/panel/ja-solar-jam60d41-510-lb-1 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.