HB21 440W Folding Solar Panel

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  • Regular price $1,499.00
Price incl. GST | Free shipping
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Do you need a lot of power for your portable power station, RV or on your camping trip? Look no further, this 440W foldable solar panel will keep you charged up.

HB21 is presenting you with one of the lightest and most efficient 440W folding solar panels on the market. Designed to last we only use the best materials available.

Its folding legs allow for easy positioning with the best orientation towards the sun. Once the sun is down, it folds into a carry case and can be easily stored away.

The solar cells have 9 Bus Bars which make them more efficient at conducting electricity and the panel experiences a reduced loss of power.

What can you charge with this panel?

  • Ecoflow Delta 1300
  • Ecoflow Delta Max | Pro - use up to 2x 440W panels in series
  • iForway T-Rex 2000 - add our MC4 to small Anderson adapter
  • Goal Zero Yeti 1000X | 1500X | 3000X - add Goal Zero adapter


HB21 440W Solar Panel General info:

  • Maximum Power: 440W
  • Unfolded Dimensions: 218.8 x 107.2 x 2.5cm
  • Folded Size: 107.2 x 54.7 x 9cm
  • Weight: 13.2KG
  • Open-Circuit Voltage (Voc): 48V
  • Short Circuit Current (Isc): 12A
  • Voltage at Pmax (Vmp): 40V
  • Current at Pmax (Imp): 11A
  • Solar Cells: 9 Bus Bar | Monocrystalline
  • Cell Efficiency: 22.62% 
  • Output type: 30A Small Anderson connector
  • Waterproof: IP65 water resistant
  • Operation Temperature: -20~70 degrees C



  • 1 x HB21 400W Solar Panel with Small Anderson wiring harness
  • Small Anderson to MC4 adapter
  • Carrying Case 


Warranty: 1 year manufacturing warranty


Download Specification Sheet here:

HB21 440W Folding Solar Panel

Customer Reviews

Based on 5 reviews
Niwi N.

Great service

Wow nearly 500 watts input from a 440 watts solar panel

This is my second review. An updated from the first one. I notice the output of my Ecoflow Delta Pro Power Station was 494 watts output from my 440 watts solar panel. This is incredible. Highly recommend the HB21 440W Folding Solar Panel.

Ben T.
Great Unit

Great portable unit. Size and weight are manageable and good energy output.

L F.C.
HB 21 440w Folding solar Panel

We are very happy with the product. It charges our delta pro pretty quickly and does a great job! Harry is exceptional in his advice. Very knowledgeable and very helpful. I’ll recommend anyone to purchase from Harry.
From L Fox

Paul -.H.N.
HB21 440W Folding Solar Panel

Just Brilliant! very easy to set up and use. Key for me, is the product does what it claims to do. Thinking of buying a second one.