# EcoFlow 220W Bifacial Solar Panel vs BigBlue 28W: specs and price compared

A sourced, side-by-side comparison of the EcoFlow 220W Bifacial Solar Panel (EcoFlow) and BigBlue 28W (BigBlue) among portable solar panels.

## Side by side

| Spec | EcoFlow 220W Bifacial Solar Panel | BigBlue 28W |
| --- | --- | --- |
| US price | $549 | not published |
| Brand | EcoFlow | BigBlue |
| Rated power watts | 220 | 28 |
| Cell efficiency pct | 23 | 25.4 |
| Cell type | — | monocrystalline |
| Open circuit voltage (V) | 21.8 | — |
| Short circuit current (A) | 13 | — |
| Weight (lb) | 20.9 | 1.5 |
| Folded dims (in) | — | 11.1 x 6.3 x 1.4 |
| Ingress protection | IP68 | IP44 |
| Surface material | tempered-glass | — |
| USB ports built (in) | — | Yes |
| Connector output | — | — |

## Key differences

- Rated power watts: EcoFlow 220W Bifacial Solar Panel 220 vs BigBlue 28W 28
- Cell efficiency pct: EcoFlow 220W Bifacial Solar Panel 23 vs BigBlue 28W 25.4
- Weight (lb): EcoFlow 220W Bifacial Solar Panel 20.9 vs BigBlue 28W 1.5
- Ingress protection: EcoFlow 220W Bifacial Solar Panel IP68 vs BigBlue 28W IP44

## Sources

- EcoFlow 220W Bifacial Solar Panel: https://www.ecoflow.com/us/220w-bifacial-solar-panel (ecoflow.com, verified 2026-07-11)
- BigBlue 28W: https://bigblue-tech.com/products/28w-sunpower-solar-charger (bigblue-tech.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/portable-solar-panels/ecoflow-220w-bifacial-vs-bigblue-28w/
Cite: Per The Front Desk Review, EcoFlow 220W Bifacial Solar Panel ($549) vs BigBlue 28W (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/portable-solar-panels/ecoflow-220w-bifacial-vs-bigblue-28w/
License: CC BY 4.0.