The Renogy E.Flex 200W N-Type Portable Solar Panel rates 4.4 among mid-size portable solar panels; the Renogy 300W N-Type Lightweight Portable Solar Suitcase (RSP300LSC) rates 4.4 among large ones. The Renogy E.Flex 200W N-Type Portable Solar Panel costs $167 less ($219.99 vs $386.99).
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 car campers and RV owners with a mid-size power station who want 300 W from one panel without a 30 lb carry. Budget for an MC4 adapter cable.
Amazon $386.99 Renogy $386.99Prices 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.
These two sit in different size classes (mid-size and large), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Renogy E.Flex 200W N-Type Portable Solar Panel | Renogy 300W N-Type Lightweight Portable Solar Suitcase (RSP300LSC) |
|---|---|---|
| Overall rating | 4.4/5 | 4.4/5 |
| Value 30% | 90 $1.10 per rated watt | 69 $1.29 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)) | 83 16.0 W per lb (18.7 lb (8.5 kg)) |
| Durability 15% | 56 IP65, 2-year warranty | 100 IP67, 3-year warranty |
| Efficiency 10% | 100 25% claimed efficiency | 97 24.8% claimed efficiency |
| Features 10% | 75 built-in kickstand, USB output, series/parallel | 55 built-in kickstand, series/parallel |
| 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 300W N-Type Lightweight Portable Solar Suitcase (RSP300LSC) | |
|---|---|---|
| Output | ||
| Rated power | 200 W | 300 W |
| Tested output | 177 W (88%) | Not tested (estimated 87%) |
| Efficiency | 25% (cell efficiency, listed as >25% in Renogy's spec table) | 24.8% (cell efficiency per Renogy's spec table, which lists module efficiency as 17.0%; marketing copy rounds it to 25%) |
| Cells | Monocrystalline (N-type, 16BB) | Monocrystalline (N-type, 16BB) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 21.6 V | 30 V |
| Voltage at max power (Vmp) | 18.8 V | 25.2 V |
| Short-circuit current (Isc) | 11.3 A | 12.6 A |
| Current at max power (Imp) | 10.6 A | 11.9 A |
| Series / parallel | Yes | Yes |
| Connections | ||
| Output connector | MC4 | MC4 |
| USB ports | 1x USB-C PD 45W, 2x USB-A | None |
| Build | ||
| Weight | 13.9 lb (6.3 kg) | 18.7 lb (8.5 kg) |
| Folded size | 23.72 x 22.99 x 1.97 in | 23.2 x 29.3 x 3.2 in (588 x 745 x 80 mm) |
| Unfolded size | 87.80 x 22.99 x 0.12 in | 2358 x 745 x 20 mm |
| Kickstand | Yes | Yes |
| Water resistance | IP65 | IP67 |
| Warranty | 2 years | 3 years |
| Output warranty | - | 3-year power output warranty |
