Oscal PM400 SE 400 W Foldable Solar Panel

A foldable solar panel with 24.6%-efficient monocrystalline cells and up to 400 W of output. Its ETFE surface and IP67 rating shrug off rain and dust, the 11 kg panel folds up like a suitcase, and a metal kickstand sets the angle.

~~$434.03~~

5%$414.03

Price with code · Geekbuying · as of 2026-10-09

Code 26BTS01 · 6% off

max $20 · orders over $50 · until 2026-10-31

Copy code & shop Geekbuying

~~$434.03~~5%$414.03Copy code & shop Geekbuying

124.6% monocrystalline cells

At 24.6% efficiency the monocrystalline cells turn more sunlight into power than standard panels, and up to 400 W refills a power station quickly. Good for long trips, RVs and emergency power.

2Adjustable metal kickstand

A 43° ± 5° metal kickstand angles it towards the sun, and sturdy handles, hanging holes and reinforced edges make it easy to set down or hang anywhere.

3IP67, folds to 959 × 674 mm

The ETFE layer passes over 90% of light and resists scratches, and IP67 sealing with a −10 to 65 °C operating range keeps it working in rain and snow. It opens to 2555 × 959 × 21 mm and folds to 959 × 674 × 50 mm.

Key specs

Peak power: 400 W ±10%
Cell efficiency: 24.6% monocrystalline
Voc / Vmp: 43.2 V / 36 V
Waterproofing: IP67
Weight: 11 kg
Ships from: EU warehouse

Good pick if

You want to refill a power station quickly from the sun
You want a tough panel for an RV or boat

Think twice if

You have no room to unfold it to over 2.5 m

FAQ

Is there a promo code?

Yes. Enter 26BTS01 at Geekbuying checkout when buying the Oscal PM400 SE 400 W Foldable Solar Panel for 6% off. Conditions: max $20 · orders over $50 · until 2026-10-31.

Which power stations does it work with?

It uses a standard MC4 connector, and the description says adapter cables for Anderson, XT60, DC7909, DC5521 and DC6530 connect it to Oscal PowerMax units and most power stations. The package list names only the panel and manual.

Can it handle bad weather?

It is IP67 rated with an ETFE surface, so it handles rain, snow and dust, and works from −10 to 65 °C.