

JA Solar DeepBlue 4.0 Pro JAM54D40-435–460/LB
Advanced N-Type TOPCon Cell Technology:
The module uses high-efficiency N-type TOPCon cell architecture, improving carrier transport and reducing recombination losses to deliver stronger real-world energy generation and improved long-term performance compared with conventional P-type modules.
High Power Output (435–460W):
Designed for residential and light commercial rooftop installations, the module provides power output ranging from 435W to 460W with module efficiencies up to around 23%, helping maximise energy generation from limited roof space.
Excellent Temperature Performance (~-0.29%/°C):
A temperature coefficient of approximately -0.29%/°C helps maintain stable performance during high operating temperatures, supporting reliable generation in hot climate conditions.
Enhanced Low-Light Performance:
Optimised N-type cell design and advanced SMBB technology improve generation under low irradiance conditions, including cloudy weather, early mornings, and late afternoons.
Lower Degradation Rate:
The module experiences ≤1% first-year degradation and about 0.4% annual degradation, ensuring higher long-term energy yield over the system lifetime.
Strong Mechanical Durability:
Built with reinforced materials and high-quality manufacturing processes, the module is designed to withstand demanding environmental conditions, including wind loads up to 2400Pa and snow loads up to 5400Pa.
1500V System Compatibility:
The module supports modern 1500V system architectures, enabling more efficient system design and reducing balance-of-system costs in larger installations.
Long-Term Warranty Protection:
Backed by a 12-year product warranty and a 30-year linear performance warranty, providing dependable long-term system performance.

JA Solar delivers precision-manufactured, high-performance solar modules for homeowners, businesses, and utility-scale projects seeking exceptional reliability, efficiency, and long-term energy yield — all from a globally trusted brand. Backed by nearly two decades of continuous research, development, and advanced manufacturing expertise, JA Solar produces innovative, high-quality, and cost-effective photovoltaic solutions designed to perform in diverse environmental conditions. With a strong global presence and a proven track record in large-scale deployments, JA Solar empowers customers to achieve greater financial returns and meaningful environmental impact for residential, commercial, and enterprise solar investments.


