The Renogy Black Division 100W Flexible is the better portable solar panel overall, rated 4.3 to 3.9. The Renogy Black Division 100W Flexible leads on value. The Renogy Black Division 100W Flexible costs $84.90 less ($125.09 vs $209.99).
A low-profile 100 W panel for curved or weight-limited van, RV and boat roofs, especially where an all-black look matters. On a flat roof that can take the weight, a rigid panel lasts longer for less money.
Amazon $125.09For 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 | Renogy Black Division 100W Flexible | BougeRV Yuma 100W CIGS Flexible (Compact) |
|---|---|---|
| Overall rating | 4.3/5 | 3.9/5 |
| Value 30% | 98 $1.25 per rated watt | 68 $2.10 per rated watt |
| Tested output 20% | 100 not yet tested; estimated 91% of rated watts from 2 tests of Renogy panels and 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% | 100 18.9 W per lb (5.3 lb (2.4 kg)) | 100 22.0 W per lb (4.5 lb (2.1 kg)) |
| Durability 15% | 100 IP67, 5-year warranty | 100 IP68, 10-year warranty |
| Efficiency 10% | 0 15.7% claimed efficiency | 0 17% claimed efficiency |
| Features 10% | 0 no kickstand, USB or bifacial cells | 0 no kickstand, USB or bifacial cells |
| Renogy Black Division 100W Flexible | BougeRV Yuma 100W CIGS Flexible (Compact) | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Tested output | Not tested (estimated 91%) | Not tested (estimated 88%) |
| Efficiency | 15.7% (module efficiency per Renogy's spec table; the Amazon listing quotes 22%) | 17% (cell efficiency) |
| Cells | Monocrystalline (half-cut PERC) | CIGS (thin-film copper indium gallium selenide) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 23.5 V | 30.5 V |
| Voltage at max power (Vmp) | 19.4 V | 24 V |
| Short-circuit current (Isc) | 5.5 A | 4.7 A |
| Current at max power (Imp) | 5.2 A | 4.2 A |
| Voc temperature coefficient | - | -0.3%/°C |
| Connections | ||
| Output connector | - | MC4 |
| USB ports | None | None |
| Build | ||
| Weight | 5.3 lb (2.4 kg) | 4.5 lb (2.1 kg) |
| Flexible | Yes, bends up to 240° | Yes, bends up to 360° |
| Dimensions | 43.0 x 22.9 x 0.8 in (1093.0 x 582.0 x 20.5 mm) | 42.6 x 26.0 x 0.06 in |
| Kickstand | No | No |
| Water resistance | IP67 | IP68 |
| Warranty | 5 years | 10 years |
| Output warranty | 5-year output warranty | 25-year performance warranty |
| Released | 2025-09 | 2022-11 |
