EcoFlow
EcoFlow 220W Bifacial Solar Panel
$549
Best Portable Solar Panels · head-to-head
EcoFlow 220W Bifacial Solar Panel vs BigBlue 28W
A sourced, side-by-side comparison. EcoFlow 220W Bifacial Solar Panel is cheaper at $549. Every spec and price links to its source.
BigBlue
BigBlue 28W
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Which is better: the EcoFlow 220W Bifacial Solar Panel or BigBlue 28W?
The BigBlue 28W wins 1 of the 1 specs we compare head to head; the other wins 0.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  EcoFlow 220W Bifacial Solar Panel |  BigBlue 28W |
|---|---|---|
| US price | $549 | — |
| Brand | EcoFlow | BigBlue |
| Released | — | — |
| Rated power watts | 220 | 28 |
| Cell efficiency (%) | 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 | — | — |
Sources — EcoFlow 220W Bifacial Solar Panel: ecoflow.com (verified 2026-07-11). BigBlue 28W: bigblue-tech.com (verified 2026-07-11).
What's the difference between the EcoFlow 220W Bifacial Solar Panel and BigBlue 28W?
Where the two actually differ on the specs we track (4 of 11). Matching specs are omitted.
- Rated power watts: EcoFlow 220W Bifacial Solar Panel 220 vs BigBlue 28W 28
- Cell efficiency (%): 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