S SOLARSPECS
The ET Solar Standard 405W is a high-performance Monocrystalline PERC solar module engineered for professional installations. The optimized 20.49% efficiency rating makes this module a reliable and cost-effective choice for large-scale solar deployments. Backed by a comprehensive 25-year warranty, the Standard 405W is built for decades of reliable energy production. Measuring 1722 x 1134 x 30 mm and weighing 19.0kg, the Standard 405W is designed for efficient handling and installation.
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Monocrystalline PERC

ET Solar Standard 405W

Max Power
405W
Efficiency
20.49%
Operating V
34.1V
Warranty
25Y
ET Solar Standard 405W logo
Technical Specifications
Open Circuit Voltage (Voc)41.7V
Short Circuit Current (Isc)12.59A
Voltage at Pmax (Vmp)34.1V
Current at Pmax (Imp)11.88A
Temp. Coefficient of Pmax-0.37%/°C
Dimensions1722 x 1134 x 30 mm
Weight19.0kg

FAQ

What is the power output of ET Solar Standard 405W?

The ET Solar Standard 405W produces up to 405W of maximum power under Standard Test Conditions (STC).

How efficient is the Standard 405W?

The Standard 405W has a module efficiency of 20.49%, placing it in the top tier of commercial solar panels available in 2026.

What warranty does ET Solar offer?

ET Solar provides a 25-year warranty for the Standard 405W, covering product defects and performance guarantees.

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