The Ecosonique 100W (UC-100A) and the FlexSolar S60 60W are evenly matched, rated 4.3 and 4.3. The Ecosonique 100W (UC-100A) leads on features. The FlexSolar S60 60W wins on durability, portability and efficiency. The FlexSolar S60 60W costs $20 less ($62.99 vs $82.99).
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 $82.99A light, packable panel for campers who mainly charge phones, power banks and small power stations, and it did well in independent testing. Anyone filling a larger station should step up to 100 W or more.
Amazon $62.99Prices 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) | FlexSolar S60 60W |
|---|---|---|
| Overall rating | 4.3/5 | 4.3/5 |
| Value 30% | 100 $0.83 per rated watt | 100 $1.05 per rated watt |
| Tested output 20% | 92 not yet tested; estimated 88% of rated watts from the median of the 11 tested panels | 78 best measured 83% of rated watts (1 test) |
| Portability 15% | 88 16.5 W per lb (6.1 lb (2.8 kg)) | 100 23.1 W per lb (2.6 lb (1.2 kg)) |
| Durability 15% | 36 IP65, 1-year warranty | 60 IP67 |
| Efficiency 10% | 75 23.5% claimed efficiency | 83 24% claimed efficiency |
| Features 10% | 55 built-in kickstand, USB output | 20 USB output |
No independent test published yet.
| Tested by | Measured peak | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 50 W | 83% | OutdoorGearLab says the panel delivered over 50 W on a few occasions when charging a small power station over DC, propped toward the sun on clear summer days in Idaho; over USB-C it averaged more than 5,100 mAh per hour of midday July sun. Review published August 2026. |
| Ecosonique 100W (UC-100A) | FlexSolar S60 60W | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 60 W |
| Tested output | Not tested (estimated 88%) | 50 W (83%) |
| Efficiency | 23.5% (cell efficiency per the Amazon listing's description; its spec table says 24%) | 24% (Amazon listing and FlexSolar both claim up to 24% conversion efficiency without saying cell or module) |
| Cells | Monocrystalline | Monocrystalline |
| Bifacial | No | No |
| Electrical | ||
| Voltage at max power (Vmp) | 20 V | - |
| Current at max power (Imp) | 5 A | - |
| Connections | ||
| Cables included | 3 m DC5521 male-to-male cable, 0.5 m DC5521 to XT60 and Anderson cable, DC7909, DC5525 and DC35135 connectors | Solar charging cable with XT60, Anderson, DC7909 and DC5521 ends |
| USB ports | 1x USB-C PD3.0 (max 45W), 1x USB-A QC3.0 (max 24W), plus a 20V DC output | 1x USB-C PD3.0 up to 40W, 1x USB-A QC3.0 up to 18W per the Amazon listing; DC output up to 60W at 20-28V. The junction box is not waterproof |
| Build | ||
| Weight | 6.1 lb (2.8 kg) | 2.6 lb (1.2 kg) |
| Folded size | 15.68 x 10.44 x 2.96 in | 12.0 x 9.8 x 0.7 in |
| Unfolded size | 68.28 x 15.68 x 0.99 in | 54.8 x 12 x 1 in |
| Folding sections | - | 6 |
| Kickstand | Yes | No |
| Water resistance | IP65 | IP67 |
| Warranty | 1 years | - |
| Released | 2025-07 | 2025-07 |
