• Charge faster with high 400W solar input
  • Up to 23% conversion rate
  • Durable, multi-layered materials
  • Self-supporting with an adjustable angle
  • IP68 waterproof rating
  • One-piece folding design

400W Portable Solar Panels

EcoFlow’s 400W portable solar panel offers high solar output, conversion efficiency rating, and a convenient folding design so it’s ready to grab and go at any time.

High Solar Output and a One-piece Folding Design

Charge faster, wherever you go.

With a unique folding design, the 400W solar panel combines powerful energy production with portability. To achieve a higher solar conversion efficiency of 23%, we use multi busbar monocrystalline cells, so you get even more energy to recharge your portable power station.

An Integrated, Self-supporting Stand

Optimise your energy.

EcoFlow’s 400W solar panel comes complete with a protective case that doubles as a sturdy supporting stand. Simply set up your panel anywhere and conveniently adjust its angle to get the most sun possible.

Ready for the outdoors.

Made from durable and flexible materials, the portable solar panel is perfect for off-grid living and travel. Its multi-layered design offers high impact resistance for the rugged outdoors, while its 16 kg light-weight means effortless carrying to a campsite. A rigid layer embedded in the carry case protects the panel from overbending when you carry or store it.

Built to weather the storm.

The 400W solar panel can carry on collecting energy even during a downpour. With a protective ETFE film and a high IP resistance level of 68, the solar cells can withstand environments from humid and wet to dry and dusty.

Take solar power on the go.

EcoFlow’s 400W solar panel is a camping or RV must-have. The compact design saves valuable space for your other travel essentials. When you’re ready to head off on your next adventure, simply collapse the panel down to store in your van or car.

Specifications

Rated Power: 400 W

Cell Type: Monocrystalline silicon

Efficiency: 22.60%

Warranty: 24 months

Dimensions: 41.7*93.1*0.98 in (105.8*236.5*2.5cm)

Open Circuit Voltage: 48V (Vmp 41V)

Short Circuit Current: 11A (Imp 9.8A)

Weight (Solar Panel): Approx. 16 kg

Weight (with Kickstand Case): Approx. 19 kg

Save: £21

Price Lower Than Manufacturer*

EcoFlow 400W Portable Solar Panel

Original price was: £849.00.Current price is: £828.00.

Runtime Calculator

Enter your battery capacity and appliance wattage – or chose from one of the preset options – to calculate an approximate runtime.

Total Runtime: 0 hours and 0 minutes*
Wh
W

Warning: If the appliance’s power demand (W) exceeds the battery’s capacity (Wh), the charging or powering process on some power stations will not work as expected. Always ensure that the battery’s capacity is sufficient for the appliance’s power requirements before attempting to charge or power it.

*The figures provided by this calculator are indicative only and should be used as a general guide. Actual performance may vary depending on various factors, including the specific conditions of use and the efficiency of your devices.

What is Undertwok, or Under2k?

Well, we are an independent, and local, Retail shop that doubles as a Social media studio and event space. Our shop offers a unique blend of services with a vision to help everyone ‘Live their life under 2 kWh per day’. Our shop seamlessly blends traditional retail with digital innovation, our space serves as both a hub for our Portable Solar Powered products, available to purchase, and a dynamic social media studio. This space provides a platform for creativity to flourish, allowing visitors to not only shop, but also engage and learn about living their lives under 2 kWh per day.

Pop into the shop where we would love to chat over a solar powered pot of tea or coffee.

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Ask us about personal door-to-door home delivery from stock within the local area (RG postcode), or Shipping within 3-5 working days for the rest of the UK.