Longi 550 Watt Solar Panel

The LONGi Solar Hi-MO 5 LR5-72HBD-550M is a high-efficiency, 550-watt monocrystalline bifacial solar panel designed for large-scale commercial and utility installations. Featuring advanced 144 half-cell PERC technology, this dual-glass module optimizes energy capture from both sides, boosting overall power yield by up to 25% depending on the surrounding albedo. Built with a rugged anodized aluminum alloy frame and dual 2.0mm heat-strengthened glass, it delivers reliable performance under heavy mechanical loads and extreme environmental conditions.

Key Features

• Bifacial Energy Yield: Captures sunlight from the front and back sides to maximize power output.

• Half-Cut Cell Design: Reduces internal resistance, lowering operating temperatures and minimizing shading loss.

• High Efficiency: Reaches up to 21.5% module efficiency for compact footprint power generation.

• Superior Durability: Solid IP68 junction box protection paired with PID-resistant materials for a longer lifespan.

Physical Specifications (American Units)

• Length: 88.8 inches

• Width: 44.6 inches

• Thickness: 1.38 inches

• Weight: 71.2 lbs [1]

Mechanical Parameters

• Cell Orientation: 144 half-cells (6x24 arrangement)

• Glass Composition: Dual-glass construction (2.0mm front / 2.0mm back)

• Frame Type: Silver anodized aluminum alloy

• Junction Box: Split box style, IP68 rated with 3 bypass diodes

• Output Cables: 4mm² solar cable, length customized by request

Electrical Performance (STC)

• Maximum Power (Pmax): 550W

• Open Circuit Voltage (Voc): 49.80V

• Short Circuit Current (Isc): 13.99A

• Voltage at Pmax (Vmp): 41.95V

• Current at Pmax (Imp): 13.12A