S SOLARSPECS
The LONGi Solar Ultra 390W (2023) is a high-performance IBC N-Type solar module engineered for professional installations. With its exceptional 22.91% efficiency rating, this panel maximizes power density for space-constrained installations. Backed by a comprehensive 25-year warranty, the Ultra 390W (2023) is built for decades of reliable energy production. Measuring 1722 x 1134 x 30 mm and weighing 18.0kg, the Ultra 390W (2023) is designed for efficient handling and installation.
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IBC N-Type

LONGi Solar Ultra 390W (2023)

Max Power
390W
Efficiency
22.91%
Operating V
33.8V
Warranty
25Y
LONGi Solar Ultra 390W (2023) logo
Technical Specifications
Open Circuit Voltage (Voc)41.4V
Short Circuit Current (Isc)12.23A
Voltage at Pmax (Vmp)33.8V
Current at Pmax (Imp)11.54A
Temp. Coefficient of Pmax-0.27%/°C
Dimensions1722 x 1134 x 30 mm
Weight18.0kg

FAQ

What is the power output of LONGi Solar Ultra 390W (2023)?

The LONGi Solar Ultra 390W (2023) produces up to 390W of maximum power under Standard Test Conditions (STC).

How efficient is the Ultra 390W (2023)?

The Ultra 390W (2023) has a module efficiency of 22.91%, placing it in the top tier of commercial solar panels available in 2026.

What warranty does LONGi Solar offer?

LONGi Solar provides a 25-year warranty for the Ultra 390W (2023), covering product defects and performance guarantees.

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