A low-cost 400 W folding panel for owners of large power stations who camp by the car or RV. The thin spec sheet means checking a station’s voltage limit before buying.
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
| Output | |
|---|---|
| Rated power | 400 W |
| Tested output | Not tested (estimated 87%) |
| Efficiency | 23.5% (the listing gives a 21.5-23.5% range without saying cell or module; the top of the range is recorded) |
| Cells | Monocrystalline |
| Bifacial | No |
| Electrical | |
| Series / parallel | Yes |
| Connections | |
| Output connector | MC4 |
| USB ports | None |
| Build | |
| Weight | 21.5 lb (9.8 kg) |
| Folded size | 32.09 x 31.30 x 1.97 in |
| Kickstand | Yes |
| Water resistance | IP65 |
For 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 $386.99For owners of large power stations who want 400 W from a single panel they can still carry. It is much lighter than older 400 W folding panels.
Amazon $599.98 Anker SOLIX $699.99A 400 W folding panel for owners of large power stations that accept around 50 V of solar input. Small-station owners need a lower-voltage panel.
Amazon $399.99More from Greenmagic: every Greenmagic product ranked.
