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Solaria solar panel specifications
Model Number PowerX-400R
STC Rating 400.0 Watts
PTC Rating 364.9
Open Circuit Voltage (Voc) 37.3 Volts
Short Circuit Current (Isc) 13.68 Amps
Frame Color Black Anodized Aluminum
Origin USA
Power Tolerance -0 / +3%
Module Efficiency 20.59%
Weight 48.7 lbs.
Length 67.8 in.
Width 44.7 in.
Height 1.4 in.

Solaria Solar System Pricing

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Solaria PowerX-400R Performance Series 400W Solar Panel

SKU PowerX-400R

Solaria PowerX-400R 400W Solar Panel

Solaria PowerXT 350R solar panel home

The Solaria PowerX-400R Performance Solar Panel is a high-performance, residential solar panel designed for maximum energy efficiency and reliability. With 400 watts per panel and an efficiency of over 20.5%, the PowerX-400R delivers higher power density, meaning it can generate more energy from the same rooftop area. Its advanced design features next-generation M10-based solar cells and innovative cell layout that covers the entire panel surface for power generation.

The all-black sleek design and barely visible wires make it an attractive addition to any residential rooftop. The PowerX uses Solaria's core cell cutting technology, which has made them a market leader for over a decade, ensuring quality and durability.

Solaria PowerX-400R Features

Solaria High Power

High Efficiency, High Power

At 400 watts and 20.5% efficiency, Solaria PowerX solar panels are one of the highest power residential panels available.

Solaria Quality

High Quality and Reliability

State-of-the art cell cutting technology and advanced panel construction ensure that PowerX panels are highly reliable and designed to far exceed the industry-leading 25-year warranty.

Solaria All Black

All Black Aesthetics

Compared to conventional panels, Solaria PowerX panels have a more uniform all-black appearance.

Solaria System Value

Best System Value

Solaria PowerX solar panels produce more power per square meter area. This reduces installation costs due to fewer balance of system components.


Solaria residential solar panels warranty

25 Year Limited Product Warranty

  • 25 Year Power, Parts & Labor Warranty
  • UL 61730 / IEC 61215 / IEC 61730
  • Fire Type (UL 1703) 2
Solaria PowerX-400R 400W Solar Panel Review

Leading the way

Recognized as a Global “Top Performer"

Solaria has been recognized as a global leader in PV module reliability and durability by being named as a ’Top Performer’ in the DNV GL PV Module Reliability Scorecard for both 2017 and 2018. This scorecard report, conducted by the international accredited registrar and classification body DNV GL, is considered to be the most comprehensive assessment of PV module reliability. Through their rigorous testing and ranking of the best modules in the solar industry, Solaria has been acknowledged as one of the leaders in the field.

Solaria is also recognized and certified by TUV Rheinland, a highly respected international inspection agency, and the RETC (Renewable Energy Test Center) a noted third-party certification testing provider for solar and renewable energy products.

From the release of its first low-concentration-photovoltaics (LCPV) products to the current PowerXT line, Solaria has become synonymous with high quality, durability and high performance. Products are continuously tested, internally, by third parties and in the field, and certified globally.


Committed to Environmental and Social Governance

Solaria follows ethical manufacturing and sourcing practices. We ensure that all of our suppliers and vendors adhere to a strict code of ethics and integrity as established by applicable law and international standards.

These standards include our compliance with all applicable laws, regulations, and international standards relating to: anti-corruption and anti-money laundering, including the United States Foreign Corrupt Practices Act, the UK Bribery Act, and the OECD Convention on Combatting Bribery of Foreign Public Officials in International Business Transactions; ethical manufacturing and sourcing practices ensuring a safe work environment, fair labor practices and the protection of human rights, including prohibitions on slavery, human trafficking, involuntary labor, child labor and discrimination in hiring and employment practices; and environmental protection.

Quantity Solaria PowerX-400R 400W wholesale solar panel discounts & complete systems available.

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