The ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) is the better portable solar panel overall, rated 4.5 to 4.3. The ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) leads on value. The Anker SOLIX PS400 Bifacial Portable Solar Panel wins on features. The ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) costs $49.99 less ($549.99 vs $599.98).
A light, high-wattage bifacial panel for owners of large power stations with a 50 V-plus solar input, especially over reflective ground. Owners of small or low-voltage stations should look elsewhere.
Amazon $549.99 ZOUPW $649.99For 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 $699.99Prices 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 large portable solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) | Anker SOLIX PS400 Bifacial Portable Solar Panel |
|---|---|---|
| Overall rating | 4.5/5 | 4.3/5 |
| Value 30% | 77 $1.15 per rated watt | 57 $1.50 per rated watt |
| Tested output 20% | 100 not yet tested; estimated 91% of rated watts from 1 test of ZOUPW panels and the median of the 10 tested panels | 89 not yet tested; estimated 87% of rated watts from the median of the 10 tested panels |
| Portability 15% | 100 21.3 W per lb (22.5 lb (10.2 kg)) | 100 18.3 W per lb (21.9 lb (9.9 kg)) |
| Durability 15% | 100 IP68, 3-year warranty | 100 IP68, 5-year warranty |
| Efficiency 10% | 100 25.6% claimed efficiency | 100 25% claimed efficiency |
| Features 10% | 25 bifacial | 60 built-in kickstand, bifacial |
| ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) | Anker SOLIX PS400 Bifacial Portable Solar Panel | |
|---|---|---|
| Output | ||
| Rated power | 480 W | 400 W |
| Tested output | Not tested (estimated 91%) | Not tested (estimated 87%) |
| Efficiency | 25.6% (ZOUPW's 'up to 25.6%' figure, not stated as cell or module; the Amazon listing says 25%+) | 25% ("25%+ conversion efficiency" per Anker; cell vs module not stated) |
| Cells | Monocrystalline (N-type, 16BB, 182 mm cells) | - |
| Bifacial | Yes, up to 144 W more from the back | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 49.3 V | - |
| Voltage at max power (Vmp) | 42.5 V | 48 V |
| Short-circuit current (Isc) | 12 A | - |
| Current at max power (Imp) | 11.3 A | 8.3 A |
| Connections | ||
| Cables included | 13 ft 12AWG solar extension cable, 2 ft 12AWG 4-in-1 adapter cable (DC7909 with DC8020 adapter, XT60, Anderson) | 2x 8.2 ft (2.5 m) solar charging cable, 1.6 ft (0.5 m) XT-60i solar charging cable |
| Build | ||
| Weight | 22.5 lb (10.2 kg) | 21.9 lb (9.9 kg) |
| Folded size | 34.65 x 32.56 x 3.35 in (880 x 827 x 85 mm) | 22.3 x 38.7 x 3.2 in |
| Unfolded size | 138.58 x 32.56 x 0.87 in (3520 x 827 x 22 mm) | 90.2 x 38.7 x 0.7 in |
| Kickstand | - | Yes |
| Water resistance | IP68 | IP68 |
| Warranty | 3 years | 5 years |
