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VTOMAN VS40 folding panel, 40 W, USB-C PD 30 W, ETFE face, 0.82 kg stated review

The only panel of the nine to publish a Power Delivery figure with its voltage and current steps, and the only one to say where its IP67 stops — the junction box is not covered by it.

The bottom line The most complete electrical sheet on this shelf, and the only one candid about where its waterproofing ends.

What this listing puts on record

A 40 W folding panel with A+ monocrystalline cells under an ETFE face quoted at 95 % light transmission, a stated conversion of up to 25 %, a USB-A and a USB-C output carrying PD 30 W, an IP67 rating for the panel, a folded size of 28 × 30 × 2.4 cm, a mass of 0.82 kg and two carabiners.

The only Power Delivery figures on this shelf

PD 30 W, and then the steps: 5 V/3 A, 9 V/3 A, 12 V/2.5 A. Two panels in this hub name Power Delivery at all, and this is the one that prints what it means. Those three lines are what let a buyer check a laptop or a phone against the panel instead of guessing from a wattage. It costs a listing nothing to publish them, and eight out of nine here do not.

Where the IP67 stops

The fourth bullet point states IP67 for the panel and then, in the same breath, that the junction box is not waterproof and should be kept out of the wet. Nobody else on this shelf draws that line, and it is the line that matters: an ingress rating usually covers the face while the socket pocket is rated separately or not at all. Saying so is a point in this listing’s favour, not against it.

The 45-degree line, read carefully

Under optimal sunlight at 45°, the maker states 40 W; on cloudy days, 20 to 25 W; and shading, it adds, can cut output by up to 70 %. That is more than most listings volunteer. It is still not a test condition — an angle is how you hold the panel, not the irradiance falling on it or the temperature of the cells. The 40 W is a bench figure here as it is everywhere on this shelf, and it is matched by the Einhell panel, which publishes the same number.

Availability

Selling between 66 € and 99 € across the German, French, Italian and Spanish Amazon stores when this page was checked.

Catalogued on the American and British Amazon stores with nobody selling it: the reference is there, the offer is not.

Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.

Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.

What it does well, and where it gives way

Strengths

  • PD 30 W published with 5 V/3 A, 9 V/3 A and 12 V/2.5 A behind it, which no other listing on this shelf does
  • Names A+ monocrystalline cells, an ETFE face at 95 % light transmission, a folded size in three dimensions and 0.82 kg
  • Says outright that the IP67 covers the panel and not the junction box, and that shading can cut output by up to 70 %

Compromises

  • The 40 W comes with a 45° angle and nothing else — no irradiance, no cell temperature
  • No unfolded dimensions, so the area that has to face the sun is unstated
  • No charge controller named, on a panel offered for small power stations

Specifications

Stated peak output40 W peak — stated; the Einhell panel in this hub publishes the same figure
Test conditions statedNot published on the listing — the maker gives a 45° angle to direct sunlight and a cloudy-day range of 20 to 25 W, neither of which is an irradiance or a cell temperature
Cell typeA+ monocrystalline silicon — stated, under an ETFE surface quoted at 95 % light transmission
Stated efficiencyUp to 25 % conversion — stated
Port setUSB-A and USB-C — stated, the USB-C carrying the Power Delivery output
Power Delivery profilesPD 30 W on the USB-C — stated, with 5 V/3 A, 9 V/3 A and 12 V/2.5 A behind it
Controller includedNot published on the listing — the maker states the panel stores no power and charges only in direct sunlight
Folded dimensions28 × 30 × 2.4 cm folded — stated
Unfolded dimensionsNot published on the listing
Weight0.82 kg — stated
IP ratingIP67 for the panel — stated; the listing adds that the junction box is not waterproof and asks that it be kept out of the wet
Amazon referenceB0GQLXJXG9 (same reference on 6 Amazon marketplaces)
EAN0746626288148

What people ask before buying

What does the 45° angle actually promise?

The maker states that under optimal sunlight at a 45° angle the panel delivers 40 W, and 20 to 25 W on cloudy days. That is a positioning instruction and a claim about its own product. It is not a set of standard test conditions, which would name an irradiance, a cell temperature and an air mass — and no listing in this hub gives those.

Is the whole panel IP67?

The listing says the panel is, then says the junction box is not, and asks that the box be protected from wet. That split is worth having: it is exactly the distinction the rest of this shelf leaves the reader to guess at.