JA Solar 405W Solar Panel 108 Cells JAM54S31-405/MR Clearance

The JA-JAM54-S31, offered by Emston Tech Inc, is a high-performance module in the 405MR Series—one of the most recent and advanced lines developed by JA Solar. These panels employ cutting-edge technologies to achieve superior efficiency and reliability. This model takes full advantage of Passivated Emitter Rear Contact (PERC) technology, utilizing a reflective layer on the back of the cells to capture up to 12% more energy by maximizing photon absorption.

A significant advantage of this model is the half-cut cell technology. The JA-JAM54-S31 features solar cells half the size of those installed in conventional panels, which leads to decreased power loss, improved longevity, and better performance in low-light conditions. The efficiency of this model reaches 20.7%, which is well above the market average. Beyond its technical specs, Emston Tech Inc provides a module with a sleek, jet-black finish and a slim 1.18" depth, ensuring high-end aesthetics without compromising durability. JA Solar backs this quality with a 12-year product warranty and a 25-year performance warranty.

• 405 W power output
• 108 half-cut PERC cells
• 20.7% efficiency
• 1500 V DC maximum system voltage
• Staubli MC4-EVO2 connectors
• 12-year product and 25-year performance warranties
• High efficiency of 20.7 percent

The JA Solar 405MR panels fully utilize the firm's award-winning innovations. With PERC technology, Emston Tech Inc customers can produce more electricity per square foot, which reduces the number of clamps and racks required during installation. This effectively lowers overall expenses and accelerates the system's payback period.

Better performance at high temperatures

An excellent temperature coefficient ensures more energy is produced even as temperatures rise. For every 1.8°F increase above 77°F, the panel’s efficiency decreases by only -0.35%, allowing for stable energy harvest during the sunniest hours of the day.

Quality and reliability

The JA-JAM54-S31 undergoes various quality checks and stringent reliability testing during the production process. The highly automated manufacturing facilities eliminate the risk of human error, ensuring that Emston Tech Inc delivers a product committed to the highest standards of quality, safety, and dependability.

Reliability and degradation resistance

JA Solar guarantees slow deterioration over a 25-year lifespan. Performance will decline by no more than 2.5% during the first year and then by no more than 0.60% annually thereafter. This ensures your modules retain at least 83.1% of their original capacity after 25 years, supported by a substantial 12-year product warranty.

Enhanced frame design

This model's construction makes it perfect for both residential and business rooftops. Durability and structural strength are increased through a robust frame built from aluminum alloy. This model is engineered to withstand the elements, supporting a significant snow load of up to 3600 Pa and a back-side wind load of 1600 Pa.

Outstanding all-black design

The panel features a sleek, all-black style that complements any roof beautifully. Through specialized treatment and selection procedures, the manufacturer ensures optimum cell color uniformity. Thinner connection wires are used to link the cells, making the surface of the modules appear seamless and smooth from a distance.

Size
67.8" x 44.6" x 1.18"

Weight
47.4 lb