JA Solar Deep Blue 4.0 Pro (LB Series) Solar Panels

Maximum power and efficiency for demanding solar projects, supplied and installed by the experts at Ceiba Renewables.

The JA Solar Deep Blue 4.0 Pro LB series is engineered for those who want the highest power output and performance from their solar installation. With a class-leading power range of 430W to 455W and an exceptional maximum efficiency of 22.8%, these panels are designed to maximise energy generation. Utilising advanced N-type TOPCon cell technology, the LB series delivers superior performance and long-term reliability. Backed by a comprehensive 25-year product warranty and a 30-year power guarantee, these panels are a premium choice for any homeowner or business. Ceiba Renewables expertly installs these modules to deliver a powerful, high-yield solar energy system.

Technical specification

Frequently Asked Questions

What is the main difference between the LB and GB series panels?
The LB series panels are slightly larger and offer a higher power output (up to 455W) and efficiency (up to 22.8%) compared to the more compact GB series. The LB series is designed for projects where maximising power generation is the top priority.

What is N-type TOPCon technology?
It is an advanced solar cell architecture that improves efficiency and reduces degradation over time compared to older cell types. This results in higher energy yields over the lifetime of the panel.

Are these panels a good investment?
Yes. While they are a premium product, their high power output and exceptional efficiency mean they generate more electricity over their lifespan. Combined with a 30-year power warranty, they offer excellent long-term value and a strong return on investment.

How does the 30-year power warranty work?
JA Solar guarantees that the panels will not lose more than 1% of their power output in the first year, and no more than 0.4% each year after that for 30 years. This ensures your system will continue to produce significant amounts of power for decades.

Can Ceiba Renewables help me choose the right panel?
Of course. Our team will assess your energy needs, available space, and budget to recommend the perfect JA Solar panel for your project, whether it’s the high-power LB series or another model.