JA Solar DeepBlue 4.0 Pro JAM54D41-440/MB 440W Black on Black 108 Half-Cell Mono N-Type Solar Panel

The JA Solar DeepBlue 4.0 Pro 440W Black-on-Black Solar Panel is a top-tier residential and commercial solar solution, offering cutting-edge N-Type TOPCon technology for superior energy output, longer lifespan, and greater efficiency under high temperatures.

With a stylish black-on-black aesthetic, this 108-cell module blends seamlessly into rooftop designs while delivering high power density and bifacial energy gain potential. Its double-glass structure improves durability and long-term performance, making it ideal for challenging environments or high-performance applications.

Key Features

• High Output Performance: 440W rated power and up to 22.5% module efficiency

• N-Type TOPCon Technology: Lower degradation, better temperature coefficients, longer lifespan

• Bifacial Double Glass: Gains additional power from reflected light behind the panel

• Durability Tested: Withstands snow loads up to 5400 Pa and wind up to 2400 Pa

• Modern Aesthetic: Sleek black frame and backsheet for high-visibility installations

• Certified Safe & Reliable: IEC 61215, IEC 61730, UL 61730, ISO 9001/14001/45001

• Long-Term Value: 25-year product warranty and 30-year linear performance warranty (0.4% annual degradation max)

Technical Specifications