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Trina Solar

Vertex S

Compact 420W panel with strong watt-per-area for tight roofs.

From £235/panel installed

8.2
Great
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How it scores

Panel Efficiency(25%)
8.5/10
Power Output & Degradation(20%)
8.5/10
Warranty & Longevity(20%)
7.5/10
Value for Money(20%)
8.5/10
Install Compatibility(15%)
7.5/10

Scores based on published manufacturer specifications and weighted criteria — not lab testing. Methodology.

Specifications

Cell type
Mono PERC
Watt peak
420
Weight kg
21
Dimensions mm
1762x1134x30
Efficiency %
21.9
Degradation % years
0.55
Warranty product years
15
Warranty performance years
25

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