S SOLARSPECS
First Solar is the largest American solar panel manufacturer and the only major producer of thin-film CdTe modules. The First Solar FS-6435-P (435W, 17.26%) is a Thin-Film photovoltaic module. Electrical: Voc 219.6V, Isc 2.55A, Vmp 183.6V, Imp 2.37A. Temp coeff -0.279%/°C.
🏭View all 218 First Solar models Brand range: 67.5W–550W
Thin-Film

First Solar FS-6435-P

Max Power
435W
Efficiency
17.26%
Operating V
183.6V
Warranty
25Y
First Solar FS-6435-P logo
Technical Specifications
Open Circuit Voltage (Voc)219.6V
Short Circuit Current (Isc)2.55A
Voltage at Pmax (Vmp)183.6V
Current at Pmax (Imp)2.37A
Temp. Coefficient of Pmax-0.279%/°C
Dimensions2039 x 1236 x 35 mm
Weight31.5kg
NOCT47.33°C
PTC Rating414.5W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 218 First Solar models in database

FAQ

How does temperature affect the First Solar FS-6435-P?

With a temp coefficient of -0.279%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.

What are the dimensions and weight of the First Solar FS-6435-P?

It measures 2039 x 1236 x 35 mm and weighs 31.5kg.

How efficient is the First Solar FS-6435-P?

This panel has 17.26% efficiency, which is standard for commercial solar panels.

How long is the warranty for the First Solar FS-6435-P?

The FS-6435-P comes with a 25-year product warranty covering defects and degradation.

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📊 Brand Context

First Solar offers 218 solar panel models from 67.5W to 550W.

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