400W 4-Fold Portable Solar Panel

SP-4F400W

The ultimate 400W foldable solar solution for large-scale energy storage and industrial backup power requirements.

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Top-Tier Efficiency: 400W output with 10.0A peak current, designed to charge high-capacity power stations in record time.

Ruggedized Design: Built to withstand harsh environments using premium ETFE and EVA materials.

B2B Advantage: Ideal for commercial distributors looking for high-wattage portable solar solutions with optimized container loading quantities.

Portable Power Supply Parameter Table

Electrical Parameters	Production Technology	Product Dimensions	Packaging Information
Rated Power: 400W Peak Operating Voltage: 40V Peak Operating Current: 10A Open Circuit Voltage (Voc): 48V Short Circuit Current (Isc): 11A Cell Conversion Efficiency: 23% IP Rating: IP68 Cable Length: 1.5 meters Connector (Optional): DC5521, DC7909, Anderson 30A, XT60 or MC4	Cell Technology: Monocrystalline Silicon Encapsulation Material: ETFE + EVA + Fiberglass Board Manufacturing Process: Integrated Lamination Cell Connection: 4S4P (4 Series x 4 Parallel), 4-Fold	Folded: 570x595x45mm Unfolded: 2140x595x25mm	Inner CTN Size: 1137x90x696mm Outer CTN Size: 1147x200x727mm Inner/Outer CTN Material: K737K or V646V Packing Qty: 1pc/inner, 2pcs/outer Unit N.W.: 14.90kg Unit G.W.: 16.40kg Outer CTN N.W.: 29.80kg Outer CTN G.W.: 32.80kg

400W solar panel bulk,large scale solar storage,professional solar supplier.

Not sure who to contact?

Message us on WhatsApp with the capacity you need, the quantity and the destination market. You will get the right configuration and a price, usually within the hour. You can also email sales@beeste.com — we reply within 24 hours.

WhatsApp +86 198 7641 4034 WhatsApp +86 186 2035 9117 Get a Quote

What 400W actually delivers

Roughly 1,120 to 1,280Wh a day at four peak sun hours with a realistic derate. A 10.0A peak current is enough to charge a high-capacity station in a single good day rather than across two.

Who it suits

Large-scale portable storage and industrial backup where the array is deployed quickly and then left. Emergency response, field hospitals and site offices are the typical deployments.

Before you order

At 400W the panel is a two-person item. Publish weight and folded dimensions before quoting into any portable application.
Confirm cable gauge and connector rating at 10A; the standard lead is often the limiting component.
Ask for the drop and vibration test standard if the unit will be transported repeatedly.

Listing note

Deployment takes two people. Quote it into fixed or vehicle-transported applications, and publish folded dimensions and weight up front, because the returns in this size are almost always handling complaints.