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400 Watt Solar Panels

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JA Solar 405W Black on Black 108 Half-Cell Mono DeepBlue 3.0 Light Solar Panel |  JAM54S31-405/MR
REC Alpha Pure-RX 460W Solar Panel Black on Black Heterojunction Cells
Jinko EAGLE 425W JKM425N-54HL4-B Black-on-Black Mono Solar Panel

Our 400 Watt Solar Panel collection offers a balance of robust energy output and a compact footprint, making it well-suited for both residential and commercial installations. If you seek versatile mounting options, explore our Solar Roof Mounts collection for systems that integrate seamlessly with these panels, or discover our PV Solar Panels collection for a broader range of high efficiency solar panels tailored to various project needs.

This range features advanced cell technologies such as N-Type TOPCon, heterojunction, and bifacial designs, each contributing to improved energy capture and long-term durability. If you're looking for a sleek, modern appearance, our Bi-Facial collection offers options that blend with contemporary architecture while maintaining high performance. 

Searching for reliable solar output without compromising on aesthetics or warranty coverage? Many panels in this category are lead-free, offer robust protection against weather, and come with extended warranties. If you're exploring ways to expand your system, our Solar Inverters  and Charge Controllers  collections can help you build a complete, efficient solar setup.

Key Advantages of 400 Watt Solar Panels

  • Optimized Output: Delivers substantial power generation in a compact form, ideal for maximizing limited installation space.

  • Modern Aesthetics: Black on black solar panels provide a visually appealing, low-profile look for residential and commercial rooftops.

  • Durability: Engineered to withstand high wind and snow loads, ensuring reliable performance in diverse environments.

Related Solar Panel Options

Explore More Solar Solutions

Here are other collections addressing various solar energy needs:

Quick Comparison: 400 Watt Solar Panel Models

Product Name

Cell Technology

Module Efficiency

Stand-out Features

Brand

Jinko JKM430N-54HL4-B 430W

N-Type TOPCon, 108 half-cell

22.02%

Black on black, 25/30-year warranty, high durability

Jinko

REC Alpha Pure-RX 460W

Heterojunction (HJT), half-cut

Up to 22.3%

Lead-free, black on black, 25-year warranty

REC

REC Pure 2 REC420AA Pure 2 420W

HJT, 132 half-cut

21.7%

Gapless design, lead-free, robust load capacity

REC

Hyundai HiN-T435NF(BK) 435W

N-Type TOPCon, bifacial

22.28%

Bifacial gain, black on black, 25-year product warranty, 30-year linear performance warranty


Hyundai

JA Solar 405W JAM54S31-405/MR

Mono PERC, 108 half-cell

20.7%

Black on black, PERC tech, 12-year product warranty, 25-year linear power output warranty

JA Solar

Broader Solar Energy Categories

Why Choose 400 Watt Solar Panels from The Solar Store?

  • Wide selection of high efficiency solar panels from trusted brands

  • Panels with advanced cell technologies for optimal performance

  • Options for both grid-tied and off-grid applications

  • Expert support to help you design and size your solar system

  • Reliable shipping and customer service for a seamless experience

FAQ

400-watt solar panels offer a strong balance of power output and compact size, making them suitable for both residential and commercial installations. Their efficiency and modern design help maximize energy production while maintaining curb appeal.

Black on black solar panels are designed for aesthetics and can offer comparable efficiency to standard panels, especially when using advanced cell technologies. They are ideal for installations where appearance is a priority.

Yes, 400 watt solar panels are compatible with both grid-tied and off-grid systems. Pairing them with the right inverters and batteries from our Solar Inverters and Batteries & Accessories collections ensures reliable performance.

Monocrystalline panels are known for high efficiency and a sleek look, while bifacial panels can capture additional energy from reflected light. The choice depends on your installation environment and energy goals.

Warranties vary by manufacturer. Always review the specific warranty terms for each model.

400 watt solar panels are engineered to withstand high wind and snow loads, with robust frames and weather-resistant materials. Check the technical specifications for load ratings and certifications.

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