The Renogy E.Flex 200W N-Type Portable Solar Panel is the better portable solar panel overall, rated 4.4 to 4.1. The Renogy E.Flex 200W N-Type Portable Solar Panel leads on efficiency and features. The Renogy 200W 12V Flexible Monocrystalline Solar Panel wins on durability and portability. The Renogy E.Flex 200W N-Type Portable Solar Panel costs $23 less ($219.99 vs $242.99).
A strong all-round 200 W folding panel for power-station owners who want real output close to the rating and USB ports for direct charging. Budget for an MC4 adapter if your station doesn’t take MC4.
Amazon $219.99 Renogy $219.99For a long curved RV, trailer or boat roof that can fit one large sheet. Split the wattage across two smaller panels if vents or hatches break up the space.
Amazon $242.99 Renogy $311.99Prices 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 | Renogy E.Flex 200W N-Type Portable Solar Panel | Renogy 200W 12V Flexible Monocrystalline Solar Panel |
|---|---|---|
| Overall rating | 4.4/5 | 4.1/5 |
| Value 30% | 90 $1.10 per rated watt | 85 $1.21 per rated watt |
| Tested output 20% | 95 best measured 88% of rated watts (1 test) | 91 not yet tested; estimated 87% of rated watts from 1 test of Renogy panels and the median of the 10 tested panels |
| Portability 15% | 70 14.4 W per lb (13.9 lb (6.3 kg)) | 100 18.5 W per lb (10.8 lb (4.9 kg)) |
| Durability 15% | 56 IP65, 2-year warranty | 100 IP67, 5-year warranty |
| Efficiency 10% | 100 25% claimed efficiency | 0 16.7% claimed efficiency |
| Features 10% | 75 built-in kickstand, USB output, series/parallel | 0 no kickstand, USB or bifacial cells |
| Tested by | Measured peak | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 177 W | 88% | Measured output in a two-hour test on a sunny day in California at 6,500 ft; the power station’s own readout averaged 192 W across charging tests. Review published July 2026. |
No independent test published yet.
| Renogy E.Flex 200W N-Type Portable Solar Panel | Renogy 200W 12V Flexible Monocrystalline Solar Panel | |
|---|---|---|
| Output | ||
| Rated power | 200 W | 200 W |
| Tested output | 177 W (88%) | Not tested (estimated 87%) |
| Efficiency | 25% (cell efficiency, listed as >25% in Renogy's spec table) | 16.7% (module efficiency per Renogy's spec table; the Amazon listing quotes 22%) |
| Cells | Monocrystalline (N-type, 16BB) | Monocrystalline (half-cut PERC, 9BB) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 21.6 V | 23.9 V |
| Voltage at max power (Vmp) | 18.8 V | 20.1 V |
| Short-circuit current (Isc) | 11.3 A | 10.7 A |
| Current at max power (Imp) | 10.6 A | 10 A |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | MC4 | - |
| USB ports | 1x USB-C PD 45W, 2x USB-A | None |
| Build | ||
| Weight | 13.9 lb (6.3 kg) | 10.8 lb (4.9 kg) |
| Flexible | - | Yes, bends up to 240° |
| Dimensions | - | 63.2 x 29.4 x 0.1 in |
| Folded size | 23.72 x 22.99 x 1.97 in | - |
| Unfolded size | 87.80 x 22.99 x 0.12 in | - |
| Kickstand | Yes | No |
| Water resistance | IP65 | IP67 |
| Warranty | 2 years | 5 years |
| Output warranty | - | 90% output for 5 years |
