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400 Watt Solar Panels

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The 400-watt panels are out of stock
Subscribe on updates — we’ll let you know when 400-watt models will be in stock. On average we update products every 2 weeks.
See also 355 - 440 watt panels May be comparable
In stock
Mission Solar 385W 72 cell Solar Panel MSE385SR9Sl P-type mono-crystalline silicon 35% Off
Cell number 72 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.69
Rated Power Output 385 W
Voltage (VOC) 48.53 V
Cell Type Monocrystalline
In stock
JA Solar 405w Solar Panel 72 Cell JA-JAM72-S10-405MR - A1 Solar Store
Cell number 144 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.49
Rated Power Output 405 W
Voltage (VOC) 49.86V
Cell Type Monocrystalline
In stock
Solaria 360W Solar Panel 60 cell PowerXT-360R-PD Monocrystalline Black - A1 Solar Store
Cell number 60 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $1
Rated Power Output 360 W
Voltage (VOC) 47.7V
Cell Type Monocrystalline

Complete guide on solar systems

Learn how solar panels works and choose the one that suits your needs best

In stock
Trina 410W Solar Panel 144 cell TSM-410-DE15H(II) - A1 Solar Store 27% Off
Cell number 144 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.51
Rated Power Output 410 W
Voltage (VOC) 51.2V
Cell Type Monocrystalline
In stock
REC 365W Solar Panel 120 cell Alpha Series PV Modules Monocrystalline Black - A1 Solar Store
Cell number 120 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.81
Rated Power Output 365 W
Voltage (VOC) 44.0 V
Cell Type Monocrystalline
In stock
LONGi 440W Solar Panel 144 cell LR4-72HPH-35 Modules - A1 Solar Store
Cell number 144 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.52
Rated Power Output 440 W
Voltage (VOC) 48.9V
Cell Type Monocrystalline
In stock
Q CELLS 420W Solar Panel 144 Cell DUO L-G6 - A1 Solar Store
Cell number 144 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.54
Rated Power Output 420 W
Voltage (VOC) 48.88V
Cell Type Monocrystalline
In stock
REC 355W Solar Panel 120 cell Alpha Black - A1 Solar Store
Cell number 120 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.81
Rated Power Output 355 W
Voltage (VOC) 44V
Cell Type Monocrystalline

400 Watt solar panels

In this article, you will find the essential specifications of our most powerful and efficient 400 Watt solar panels. With the help of these highly productive modules, solar power can be collected anywhere in the world for many years and without any harm to the environment.

Advantages of 400 Watt solar panels

  • Excellent power output even in low light conditions.
  • Better efficiency thanks to half-cut cell configuration.
  • High efficiency at high temperatures.
  • Very-cost effective and price competitive.
  • Require fewer panels due to increased energy generation.
  • Reduced installation cost since requiring fewer panels.
  • Increased durability thanks to smaller cell size and therefore reduced probability of microcracking.
  • Low degradation rate.

The average price of 400 Watt panels

Our online store offers a few models of 400 Watt solar panels in the price range from $230 to $280.

Sizes of 400 Watt panels

Our 400 Watt solar panels have 144 half-cut solar cells with measurements similar to 72 cell solar panels. The dimensions of an average 400 Watt solar panel are about 79” X 39” X 1.4”. The solar panels we currently offer weigh between 48 and 50 lbs.

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Frequently asked questions

Our standard shipping charge is $175 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.

With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.

Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.

In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.

We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.

Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.

Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.

To achieve the best system efficiency, panels should be connected in series to create higher voltage.

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