LONGI 445W Solar Panel 144 cell LR4-72HBD

445w LONGi 144 half-cut cells, transparent backsheet, 1400mm cables, MC4, 35mm silver frame.

LONGi LR4-72HBD 445w is a model that uses a number of technologies to bring durability and performance to the next level.

This module takes full advantage of half-cut cell technology for lower resistive losses and better shade tolerance. At the same time, bifacial design allows the panels to produce up to 25% more electricity. By adding a solid PID resistance and special glass lamination on top, the manufacturer ended up with an efficient and very durable model that is guaranteed to retain at least 84.95% of output after 30 years.

More power output

An already high efficiency of 20.5% is further enhanced by bifacial design, which allows to harvest up to 25% more energy from the back side of the panel. The heat is also less of a threat with this module: with one of the lowest temperature coefficients in the industry, LONGi 445w loses just 0.35% of efficiency for every 1.8°F above 77°F. Half-cut cell technology adds a few more percentage points to the final count, making this model an outstanding example of efficiency.

Optimized design for higher reliability

Careful module BOM selection and solar cell process optimization ensure solid PID resistance. Enhanced electrical design and lower operating current reduce the risk of hot spot formation and decrease resistive losses.

A panel that can handle hail, wind and snow

A 35 mm frame made from anodized aluminum alloy and 2 mm layer of protective tempered glass make this module resistant to the foulest of weather. These panels pass a hailstone test where they take on 1″ hail grains at the speed of 51 mph. The front side of the modules can resist a 5400 Pa load, and the back side 2400 Pa.

30 year power warranty

Slow degradation over the next 3 decades is guaranteed by the manufacturer. The performance will decrease no more than 2% during the first year and then will be limited to 0.45% annually. Your modules will retain at least 84.95% of original performance 30 years later. The manufacturer also offers a 12 year product warranty.

Product details

• Manufacturer Part Number: LR4-72HBD-445M (1400 mm / MC4)
• Power Output: 445 Watts
• 144 Cell, Bifacial Monocrystalline
• 35mm Depth, Silver Frame, Transparent Backsheet
• 1500 Volts Max Voltage
• Shipping Weight: 60.6 lb
• Shipping Dimensions: 82.5 x 41 x 1.38 in
• Pallet Qty: 30