JA Solar Deep Blue 4.0 Pro (JAM54D41-GB Series) Solar Panels
Next-generation, high-efficiency solar panels featuring advanced N-type TOPCon cell technology, expertly supplied and installed by Ceiba Renewables.
We highly recommend the JA Solar Deep Blue 4.0 Pro panels for UK homes because they perfectly combine power with stunning aesthetics. These panels use the latest N-Type TOPCon technology to deliver exceptional efficiency, meaning you generate more electricity from your roof space. Their sleek, all-black, double-glass design ensures superior curb appeal, while their lighter and slightly smaller build makes them easier to install on residential properties. We choose these panels for customers seeking the absolute best in high output, long-term reliability, and a premium visual finish.
Why Choose This Inverter with Ceiba
- Advanced N-type TOPCon Technology: Benefit from the latest cell technology with 54 physical cells (arranged as 108 half-cut sub-cells, 6×18 layout, 182 mm wafers) for higher efficiency, lower degradation, and improved low-light response.
- All-Black, Low-Profile Design: The GB series is engineered for aesthetics and practicality, perfectly fitting residential rooftops with its sleek, shorter format and lighter weight.
- Double-Glass Durability: 1.6 mm glass sheets on both the front and rear offer superior strength, enhanced fire rating, and reduced risk of microcracks over time.
- Tailored Warranties: Up to 25-year product warranty and 30-year linear power warranty with multiple regional options available (12/25/25/30 years) — confirm with your Ceiba specialist the best package for your supply channel.
- Long-Term Performance: Typical 1st-year degradation ≤1%, then just ~0.4% per year, guaranteeing ≥87.4% power output after 30 years under the linear warranty.
Ideal for
- Homeowners placing a premium on aesthetics, efficiency, and lower roof loading
- Urban/residential projects needing all-black, compact panels
- Customers requiring robust product guarantees and lowest long-term degradation
- Systems designed for higher voltage, flexible string layouts (up to 1500 V DC)
- Projects where double-glass durability and fire safety are a must
Technical specification
- Model Series: JA Solar JAM54D41-GB (Deep Blue 4.0 Pro, GB family)
- Power Output: 415–440 W (STC)
- Max Efficiency: Up to 22.5% (440 W SKU)
- Cell Type: N-type TOPCon, 54 cells/108 sub-cells (182 mm), 6×18 layout
- Temperature Coefficient (Pmax): ~ -0.29% / °C
- NOCT: 45 ± 2 °C
- Maximum Voltage: 1500 V DC
- Dimensions: 1722 × 1134 × 30 mm (±2/±2/±1 mm)
- Weight: ~21.5 kg
- Glass: Double-glass, 1.6 mm (front and rear)
- Junction Box: IP68, 3 diodes
- Static Load: Front 5400 Pa; Back 2400 Pa
- Warranties: 25-year product, 30-year linear power (≥87.4% at 30 years), other regional warranty programs may apply (12Y, 25Y)
- Certifications: IEC 61215, IEC 61730, ISO 9001, ISO 14001, ISO 45001, IEC 62941, CE
Frequently Asked Questions
What makes the N-type TOPCon technology superior?
N-type TOPCon cells reduce degradation, boost power density, and improve low-light and high-temperature performance compared to P-type cells found in most conventional panels.
Is the all-black GB series suitable for visible/residential roofs?
Yes, the GB “all-black” format offers aesthetic appeal and a slimmer look, ideal for homes where panel appearance matters.
How do I know which warranty applies to me?
JA Solar offers several product and power warranty options depending on the SKU and region. Ceiba will confirm the exact warranty package based on your order and provide full documentation.
Is the double-glass design beneficial?
Absolutely. Double-glass panels provide enhanced mechanical strength, a higher fire safety rating, and better resistance to microcracks.
Do these panels work with existing inverters?
They are compatible with most string and hybrid inverters. We will always check system compatibility before installation.
Will they withstand UK weather conditions?
Yes, with high static load ratings and excellent thermal performance, these panels are built for the UK’s variable climate.
The Ceiba Renewables team delivered exactly what we needed—an energy solution that reduced our costs while fitting perfectly with our historic building. The process was smooth from start to finish, and the team’s attention to detail was exceptional.
Ceiba Renewables made the whole process effortless. From advice on the right charger to a neat, professional installation — it was all taken care of. I’m now charging my EV at home, saving money, and loving the convenience!
We thought our solar was doing its job—until Ceiba showed us what it could really do. The upgrade was quick, professional, and now we’re saving even more. Couldn’t be happier.