The Ecosonique 100W (UC-100A) is the better portable solar panel overall, rated 4.3 to 3.9. The Ecosonique 100W (UC-100A) leads on value, efficiency and features. The BougeRV Yuma 100W CIGS Flexible (Compact) wins on durability and portability. The Ecosonique 100W (UC-100A) costs $127 less ($82.99 vs $209.99).
A cheap, light 100 W panel for small power stations and direct USB charging on camping and hiking trips. Buyers who want a longer warranty or verified output should look elsewhere.
Amazon $82.99For tightly curved or irregular surfaces such as boat biminis and teardrop roofs, where silicon flexible panels would crack. On a gently curved roof, a silicon flexible panel gives more watts per dollar.
Amazon $209.99Prices were last checked October 24, 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 small portable solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | Ecosonique 100W (UC-100A) | BougeRV Yuma 100W CIGS Flexible (Compact) |
|---|---|---|
| Overall rating | 4.3/5 | 3.9/5 |
| Value 30% | 100 $0.83 per rated watt | 68 $2.10 per rated watt |
| Tested output 20% | 92 not yet tested; estimated 88% of rated watts from the median of the 11 tested panels | 92 not yet tested; estimated 88% of rated watts from the median of the 11 tested panels |
| Portability 15% | 88 16.5 W per lb (6.1 lb (2.8 kg)) | 100 22.0 W per lb (4.5 lb (2.1 kg)) |
| Durability 15% | 36 IP65, 1-year warranty | 100 IP68, 10-year warranty |
| Efficiency 10% | 75 23.5% claimed efficiency | 0 17% claimed efficiency |
| Features 10% | 55 built-in kickstand, USB output | 0 no kickstand, USB or bifacial cells |
| Ecosonique 100W (UC-100A) | BougeRV Yuma 100W CIGS Flexible (Compact) | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Tested output | Not tested (estimated 88%) | Not tested (estimated 88%) |
| Efficiency | 23.5% (cell efficiency per the Amazon listing's description; its spec table says 24%) | 17% (cell efficiency) |
| Cells | Monocrystalline | CIGS (thin-film copper indium gallium selenide) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | - | 30.5 V |
| Voltage at max power (Vmp) | 20 V | 24 V |
| Short-circuit current (Isc) | - | 4.7 A |
| Current at max power (Imp) | 5 A | 4.2 A |
| Voc temperature coefficient | - | -0.3%/°C |
| Connections | ||
| Output connector | - | MC4 |
| Cables included | 3 m DC5521 male-to-male cable, 0.5 m DC5521 to XT60 and Anderson cable, DC7909, DC5525 and DC35135 connectors | - |
| USB ports | 1x USB-C PD3.0 (max 45W), 1x USB-A QC3.0 (max 24W), plus a 20V DC output | None |
| Build | ||
| Weight | 6.1 lb (2.8 kg) | 4.5 lb (2.1 kg) |
| Flexible | - | Yes, bends up to 360° |
| Dimensions | - | 42.6 x 26.0 x 0.06 in |
| Folded size | 15.68 x 10.44 x 2.96 in | - |
| Unfolded size | 68.28 x 15.68 x 0.99 in | - |
| Kickstand | Yes | No |
| Water resistance | IP65 | IP68 |
| Warranty | 1 years | 10 years |
| Output warranty | - | 25-year performance warranty |
| Released | 2025-07 | 2022-11 |
