The ECO-WORTHY 260W (2 x 130W) 18BB Flexible Solar Panel 2-Pack is the better portable solar panel overall, rated 4.2 to 4.0. The ECO-WORTHY 260W (2 x 130W) 18BB Flexible Solar Panel 2-Pack leads on value. The EcoFlow NextGen 220W Bifacial Portable Solar Panel wins on features. The ECO-WORTHY 260W (2 x 130W) 18BB Flexible Solar Panel 2-Pack costs $262.01 less ($136.99 vs $399).
A cheap pair of flexible panels for curved van, boat or trailer roofs with room for two medium sheets. Buy direct from ECO-WORTHY, where the pair currently costs less than on Amazon.
Amazon $161.44 ECO-WORTHY $136.99The strongest pick here for EcoFlow owners who want the most watts from one folding panel they can still carry easily. Buy it on sale; it rarely sells at full price.
Amazon $399 EcoFlow $399Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every mid-size portable solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | ECO-WORTHY 260W (2 x 130W) 18BB Flexible Solar Panel 2-Pack | EcoFlow NextGen 220W Bifacial Portable Solar Panel |
|---|---|---|
| Overall rating | 4.2/5 | 4.0/5 |
| Value 30% | 100 $0.53 per rated watt | 56 $1.81 per rated watt |
| Tested output 20% | 89 not yet tested; estimated 87% of rated watts from the median of the 10 tested panels | 92 best measured 88% of rated watts (1 test) |
| Portability 15% | 50 weight not published (neutral score used) | 69 14.3 W per lb (15.4 lb (7 kg)) |
| Durability 15% | 60 IP68 | 60 IP68, 1-year warranty |
| Efficiency 10% | 100 25% claimed efficiency | 100 25% claimed efficiency |
| Features 10% | 20 series/parallel | 60 built-in kickstand, bifacial |
No independent test published yet.
| Tested by | Measured peak | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 193 W | 88% | Average power over a two-hour charge of a Jackery Explorer 1000 (385 Wh in 2 h), clear day at 6,300 ft, 55-65 °F; OutdoorGearLab reports this as measured watts, not an instantaneous peak |
| ECO-WORTHY 260W (2 x 130W) 18BB Flexible Solar Panel 2-Pack | EcoFlow NextGen 220W Bifacial Portable Solar Panel | |
|---|---|---|
| Output | ||
| Rated power | 260 W | 220 W |
| Tested output | Not tested (estimated 87%) | 193 W (88%) |
| Efficiency | 25% (the Amazon listing labels it module efficiency; ECO-WORTHY's spec table gives none) | 25% (EcoFlow lists 25.00% efficiency without saying whether it is cell or module efficiency) |
| Cells | Monocrystalline (18BB) | Monocrystalline (N-type TOPCon) |
| Bifacial | No | Yes, up to 175 W more from the back |
| Electrical | ||
| Open-circuit voltage (Voc) | 24.5 V | 21.5 V |
| Voltage at max power (Vmp) | 21.1 V | 18.4 V |
| Short-circuit current (Isc) | 6.5 A | 12.4 A |
| Current at max power (Imp) | 6.2 A | 11.9 A |
| Voc temperature coefficient | -0.4%/°C | - |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | MC4 | MC4 |
| Cables included | 2.95 ft (90 cm) 11 AWG MC4 leads on each panel | MC4 to XT60i |
| USB ports | None | None |
| Build | ||
| Weight | - | 15.4 lb (7 kg) |
| Flexible | Yes, bends up to 270° per the Amazon listing | - |
| Dimensions | 37.8 x 27.16 x 0.1 in (960 x 690 x 2.5 mm, each panel) | - |
| Folded size | - | 24.2 x 23.2 x 1.3 in |
| Unfolded size | - | 24.2 x 84.8 x 1.0 in |
| Folding sections | 2 | - |
| Kickstand | No | Yes |
| Water resistance | IP68 | IP68 |
| Warranty | - | 1 years |
