
EcoFlow · Folding bifacial
Solar savings: 2 panels — 10%; 3 panels — 13%; 4 panels — 15%; 5 panels — 18%. Maximum 5 panels per purchase; mix models. Panels inside kits do not count. Offers do not stack.
Based on 1 separately purchased panel after adding this selection. Final total is confirmed in your bag.
Overview & Key Strengths
The EcoFlow 220W NextGen Bifacial Portable Solar Panel (EF-Fold-B220-04) combines a 220W primary front face with a 175W ambient rear face and N-Type TOPCon cells rated up to 25% efficiency, capturing up to 28% more solar energy from ground reflection.
It features an integrated 30–60° adjustable kickstand, a built-in optical solar angle guide, and an included XT60i charging cable that unlocks the full 15A solar input limit on EcoFlow DELTA 2, DELTA 3, and DELTA 2 Max power stations.
Spec sheet
Estimated full-sun charge time
0–100% estimate for one panel in strong, direct sun with good angle. Clouds, haze, shade, and the station's own solar-input limit will slow this down in practice.
In action

EcoFlow 220W NextGen Bifacial harvesting front + rear sunlight
Set over reflective gravel to maximize rear-side bifacial gain while charging a DELTA 2 Max.

Patio & backyard backup solar deployment
Unfolds in seconds with built-in rear leg supports and a sun-shadow alignment gauge.

Rear bifacial cell surface & adjustable kickstand
Dual-sided N-Type TOPCon architecture with integrated 30–60° stand.
Highlights
In the box