Solar Panel Comparison

JA Solar Deep Blue 4.0 N-Type Full Black 450W vs Trina Solar Vertex S+ 450W Dual Glass Full Black

Both panels are rated at 450W.

Vertex S+ 450W Dual Glass Full Black has a higher efficiency of 22.5% versus 22% for the Deep Blue 4.0 N-Type Full Black 450W.

They use different cell technologies: Deep Blue 4.0 N-Type Full Black 450W uses N-type TOPCon MBB Half-Cell, while Vertex S+ 450W Dual Glass Full Black uses N-type i-TOPCon Triple-Cut.

Here's how they compare across all key specifications.

Vertex S+ 450W Dual Glass Full Black· Higher efficiencyDeep Blue 4.0 N-Type Full Black 450W· Better temp. performanceVertex S+ 450W Dual Glass Full Black· Lighter

Spec

JA Solar

Deep Blue 4.0 N-Type Full Black 450W

450W

22% efficiency

Trina Solar

Vertex S+ 450W Dual Glass Full Black

450W

22.5% efficiency

Full Specification Comparison

SpecDeep Blue 4.0 N-Type Full Black 450WVertex S+ 450W Dual Glass Full Black
Performance
Power Output450 W450 W
Efficiency22%22.5%
Cell TypeN-type TOPCon MBB Half-CellN-type i-TOPCon Triple-Cut
Temp. Coeff.-0.3 %/°C-0.29 %/°C
Number of Cells108144
BifacialYesYes
Electrical
Voc39.3 V52.9 V
Vmp32.82 V44.6 V
Isc14.48 A10.74 A
Imp13.71 A10.09 A
Max System Voltage1500 V1500 V
Operating Temp-40 to +85 °C-40 to +85 °C
Physical
Dimensions1762x1134x30 mm1762x1134x30 mm
Weight22 kg21 kg
Frame ColourBlackBlack
Connector TypeStaubli MC4-EVO2—
Junction Box IPIP68—
Warranty & Certification
Product Warranty25 years25 years
Power Warranty30 years linear30 years (87.4% yr30, 0.4%/yr)
MCS CertifiedYesYes
CertificationsIEC 61215, IEC 61730, ISO 9001, ISO 14001, ISO 45001IEC 61215, IEC 61730, IEC 62804, IEC TS 63209
Pricing (UK)
Retail Price£72.00—
Price per Watt£0.160/W—

Frequently Asked Questions

Which is more efficient, the Deep Blue 4.0 N-Type Full Black 450W or the Vertex S+ 450W Dual Glass Full Black?

The Vertex S+ 450W Dual Glass Full Black is more efficient at 22.5%, compared to 22% for the Deep Blue 4.0 N-Type Full Black 450W. Higher efficiency means more power generated per square metre of roof space.

Which panel produces more power, the Deep Blue 4.0 N-Type Full Black 450W or the Vertex S+ 450W Dual Glass Full Black?

Both panels are rated at the same output of 450W.

Which solar panel should I choose for my home — the Deep Blue 4.0 N-Type Full Black 450W or the Vertex S+ 450W Dual Glass Full Black?

The right choice depends on your priorities. If maximising energy generation per panel is key, consider efficiency and wattage. If budget is your main concern, compare price per watt. Both panels have their merits — use our Solar Estimator to see how each would perform in your specific home setup.

JA Solar

Deep Blue 4.0 N-Type Full Black 450W

450W · 22% efficiency · N-type TOPCon MBB Half-Cell

View full specs →

Trina Solar

Vertex S+ 450W Dual Glass Full Black

450W · 22.5% efficiency · N-type i-TOPCon Triple-Cut

View full specs →

More Comparisons

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See how these panels perform in your home

Use our Solar Estimator to calculate system size, installation cost, and payback period — with either of these panels as a starting point.

Solar EstimatorEstimate Installation Cost