campspec

Dune 4WD 400W Solar Blanket vs EcoFlow 400W Lightweight

Each spec shows where it came from and how it was measured. Prices are from 3 Australian shops, checked 30 Sept 2026.

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What separates these two

Where both brands give a figure measured the same way, the two are close. None of the gaps is big enough to count (the sizes are listed at the end of this section).

Price and price per watt aren't compared here yet. That needs a second shop selling each one for about the same price (within 10%), which shows the price is real. Today: price, Dune 4WD $399 and EcoFlow $1,299; price per watt, Dune 4WD $1.00 and EcoFlow $3.25.

1 figure is about the same
  • Rated output: Dune 4WD 400 W; EcoFlow 400 W (the same)

Can't be compared The two brands give this figure in different ways, or only one brand gives it. For example, one counts battery charges until 80% of the capacity is left and the other until 70%. Set side by side, the numbers would mislead, so both are shown and neither is put ahead.

  • WeightThe EcoFlow states 16 kg. The brand doesn't give this figure for the Dune 4WD.
    Sources

    EcoFlow: Caravan RV Camping product page read 30 Sept 2026 16

  • TypeThe Dune 4WD is a soft blanket that folds flat. The brand doesn't say either way for the EcoFlow.
    Sources

    Dune 4WD: Anaconda feed dated 29 Sept 2026, product name Dune 4WD 400W Folding Solar Blanket

  • Folded sizeThe EcoFlow states folds to 1,058 × 620 × 25 mm. The brand doesn't give this figure for the Dune 4WD.
    Sources

    EcoFlow: Caravan RV Camping product page read 30 Sept 2026 1058mm x 620mm x 25mm

  • Watts per square metre unfoldedThe EcoFlow states 160 W per m² unfolded. The brand doesn't give this figure for the Dune 4WD.
  • Open-circuit voltageThe EcoFlow states 48 V open-circuit. The brand doesn't give this figure for the Dune 4WD.
    Sources

    EcoFlow: Caravan RV Camping product page read 30 Sept 2026 48V (Vmp 41V)

A difference is listed above only when both brands measure a figure the same way and the gap is at least: rated output: 10% or more; price: 10% or more; price per watt: 10% or more; weight: 8% or more; type: one has it and the other doesn't; folded size: 15% or more; watts per square metre unfolded: 10% or more; open-circuit voltage: 2 V or more. Every comparison on this site uses the same gaps.

All the specs side by side

FigureDune 4WD 400W Solar BlanketEcoFlow 400W Lightweight
Output
Rated output400 W (as the product name states it)
Source

Anaconda feed dated 29 Sept 2026, product name 400W

400 W (as the product name states it)
Source

EcoFlow feed dated 29 Sept 2026, product name 400W

Open-circuit voltagenot stated48 V (condition not stated)
Source

Caravan RV Camping product page read 30 Sept 2026 48V (Vmp 41V)

Short-circuit currentnot stated11 A (condition not stated)
Source

Caravan RV Camping product page read 30 Sept 2026 11A Max

Cell typenot statedMonocrystalline
Source

Caravan RV Camping product page read 30 Sept 2026 Monocrystalline

Efficiencynot stated23% (whether this is the cells' or the whole panel's efficiency is not stated)
Source

Caravan RV Camping product page read 30 Sept 2026 23%

Watts per square metre unfoldednot stated160 W per m² derived: 400 W ÷ (2,365 mm × 1,058 mm = 2.5 m²) = 160 W per m²
Size
TypeSolar blanket: soft, folds flat
Source

Anaconda feed dated 29 Sept 2026, product name Dune 4WD 400W Folding Solar Blanket

not stated
Weightnot stated16 kg (what the weight includes is not stated)
Source

Caravan RV Camping product page read 30 Sept 2026 16

Folded sizenot stated1,058 × 620 × 25 mm (longer side × shorter side × thickness)
Source

Caravan RV Camping product page read 30 Sept 2026 1058mm x 620mm x 25mm

Price per watt$1.00 derived: $399 (price today) ÷ 400 W = $1.00 per watt$3.25 derived: $1,299 (price today) ÷ 400 W = $3.25 per watt
Unfolded sizenot stated2,365 × 1,058 × 25 mm (longer side × shorter side × thickness)
Source

Caravan RV Camping product page read 30 Sept 2026 1058mm x 2365mm x 25mm

Weight per 100 Wnot stated4 kg derived: 16 kg ÷ 400 W × 100 = 4 kg for each 100 W
Fittings
Connectornot statedMC4
Source

Caravan RV Camping product page read 30 Sept 2026 MC4 Connectors

Rated output is the watts the panel makes in a lab test with strong sun on cool cells; out in the sun it makes less. Weights and sizes are as each retailer lists them.

Where this pair sits

All 14 solar panels from 200 W to 500 W with a price today (checked 30 Sept 2026). Each dot is one solar panel: further right means more rated output, higher up means a higher price per watt. The dashed line is the middle price per watt, $2.55: half cost more, half cost less. Along the bottom, each doubling of rated output takes the same width. Point at a dot, or tap it, to see its name; click it, or tap it again, to open its page.
$0.00$1.00$2.00$3.00$4.00$5.00200 W300 W400 W600 WPrice per wattRated outputmiddle $2.55$0.00$1.00$2.00$3.00$4.00$5.00200 W300 W400 W600 WPrice per wattRated outputmiddle $2.55

these twoother solar panelsmiddle price per watt

The same as a table
Solar panelRated outputPrice todayPrice per watt
Anker SOLIX PS200200 W$899$4.50
BLUETTI PV200200 W$499$2.50
Dune 4WD 200W Solar Blanket200 W$209$1.04
iTechworld 200W Raptor Solar Blanket200 W$449$2.25
BLUETTI SORA 220220 W$649$2.95
EcoFlow 220W Lightweight220 W$699$3.18
Dune 4WD 250W Slim Folding Solar Panel250 W$219$0.88
Dune 4WD 300W Solar Blanket300 W$289$0.96
iTechworld 300W Raptor Solar Blanket300 W$549$1.83
BLUETTI PV350350 W$949$2.71
Anker SOLIX PS400400 W$1,399$3.50
Dune 4WD 400W Solar Blanket400 W$399$1.00
EcoFlow 400W Lightweight400 W$1,299$3.25
BLUETTI SORA 500500 W$1,299$2.60

Price record

Dune 4WD 400W Solar Blanket

Recorded 28 Sept 2026 to 30 Sept 2026, Anaconda. In stock at $399 (Anaconda, from 28 Sept).

Every recorded change as a table
DateRetailerPriceStock
28 Sept 2026Anaconda$399in stock

Every price move across solar panels: price log.

EcoFlow 400W Lightweight

Recorded 27 Sept 2026 to 30 Sept 2026, 4 retailers. In stock at $1,299 (Anaconda, from 28 Sept).

$1,299$1,300Anaconda, 28 Sept 2026: $1,299, in stockCaravan RV Camping, 28 Sept 2026: $1,300EcoFlow, 27 Sept 2026: $1,299My Generator, 27 Sept 2026: $1,30027 Sept 202630 Sept 2026
Every recorded change as a table
DateRetailerPriceStock
27 Sept 2026EcoFlow$1,299
27 Sept 2026My Generator$1,300
28 Sept 2026Anaconda$1,299in stock
28 Sept 2026Caravan RV Camping$1,300

Solid shape: in stock at that price. Hollow shape: listed at that price. Dashed line: out of stock. Every price move across solar panels: price log.

Every price

What each shop charges for the solar panel on its own, cheapest first. Kits (the solar panel sold with extras, like a cover or a battery) are on each product's page and don't count here.

Dune 4WD 400W Solar Blanket

AnacondaIn stock · checked 30 Sept 2026$399Check price

EcoFlow 400W Lightweight

AnacondaIn stock · checked 30 Sept 2026$1,299Check price
Caravan RV CampingChecked 30 Sept 2026$1,300Check price
My GeneratorChecked 30 Sept 2026$1,300Check price
EcoFlowChecked 30 Sept 2026TBCCheck price

Each product's own page: Dune 4WD 400W Solar Blanket · EcoFlow 400W Lightweight.