LONGi 405W Solar Panel 108 Cell All-Black LR5-54HPB-405M

The LONGi LR5-54HPB-405M, offered by Emston Tech Inc, is a standout model in the Hi-MO 5m series—one of the most advanced lines recently developed by LONGi. These panels integrate state-of-the-art technology to achieve superior efficiency and long-term reliability. By utilizing Passivated Emitter Rear Contact (PERC) technology with an additional reflective layer, the cells are able to absorb more sunlight and ensure excellent power output for your energy needs.

To further boost performance, the LR5-54HPB-405M incorporates half-cut cell technology. By using solar cells that are half the size of those found in standard panels, this module achieves reduced resistive losses and superior shade tolerance. This model offers an impressive 20.7% efficiency for its size and weight. Beyond performance, Emston Tech Inc provides a module with a sleek, jet-black finish and a 1.18" depth that ensures high-end aesthetics without compromising durability. LONGi backs this quality with a 12-year warranty for materials and processing, alongside a guarantee that performance will remain at 84.8% or more after 25 years.

• 405 W power output
• 108 half-cut PERC cells
• 20.7% efficiency
• 1000 V DC maximum system voltage
• MC4 connectors
• 12-year warranty for materials and 25-year linear power warranty
• Increased power and efficiency via PERC technology

Increased power and efficiency

PERC technology builds upon an already impressive efficiency of 20.7 percent. By combining robust PID resistance with unique glass lamination, the manufacturer has created a highly durable and efficient model. The LR5-54HPB-405M produces a reliable 405 W of power under standard test conditions, ensuring Emston Tech Inc customers receive consistent energy yields.

Keeping cool in hot weather

Maintaining efficiency at high operating temperatures is a core strength of this module. The LR5-54HPB-405M remains efficient even in extreme heat, losing just -0.34% efficiency for every 1.8°F increase above 77°F, allowing you to maximize energy harvest during the sunniest hours of the day.

Quality and reliability

The LR5-54HPB-405M 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.

Low degradation for a longer lifespan

LONGi guarantees that these panels will lose no more than 2% of their power output in the first year of service. From the 2nd to the 25th year, the average annual power decline is capped at 0.55%. This ensures the module retains over 84.8% of its original output after 25 years of operation.

Certified for the most extreme environmental conditions

This model is highly resistant to PID, salt, acid, and ammonia. It is built to withstand significant mechanical loads of up to 5400 Pa on the front and 2400 Pa on the back. This robustness is primarily due to the 1.18" thick anodized aluminum alloy frame and a layer of protective tempered glass.

Stunning black aesthetics

The sleek, all-black aesthetics of the panel will complement any rooftop beautifully. Through specialized treatments and selection criteria, the manufacturer guarantees high-quality cell color uniformity. Smaller gauge wires are used to link the cells, creating a seamless and sophisticated appearance from a distance.

Size
67.8" x 44.65" x 1.18"

Weight
45.86 lb