The ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) and the ZOUPW 450W Portable Solar Panel N-Type 16BB (ZOUPW-EZ450W) are evenly matched, rated 4.5 and 4.5. The ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) leads on portability. The ZOUPW 450W Portable Solar Panel N-Type 16BB (ZOUPW-EZ450W) wins on features. The ZOUPW 450W Portable Solar Panel N-Type 16BB (ZOUPW-EZ450W) costs $80 less ($469.99 vs $549.99).
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 $649.99A high-output single panel for owners of large power stations that accept around 50 V of solar input, at RV sites or in home backup. Owners of small or low-voltage stations should look elsewhere.
Amazon $499.99 ZOUPW $469.99Prices 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) | ZOUPW 450W Portable Solar Panel N-Type 16BB (ZOUPW-EZ450W) |
|---|---|---|
| Overall rating | 4.5/5 | 4.5/5 |
| Value 30% | 77 $1.15 per rated watt | 83 $1.04 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 | 100 best measured 100% of rated watts (2 tests) |
| Portability 15% | 100 21.3 W per lb (22.5 lb (10.2 kg)) | 77 15.3 W per lb (29.5 lb (13.4 kg)) |
| Durability 15% | 100 IP68, 3-year warranty | 100 IP68, 3-year warranty |
| Efficiency 10% | 100 25.6% claimed efficiency | 100 25% claimed efficiency |
| Features 10% | 25 bifacial | 35 built-in kickstand |
No independent test published yet.
| Tested by | Measured peak | Of rated | Conditions |
|---|---|---|---|
| Love Your RV | 360 W | 80% | Up to 360 W delivered to a Bluetti Elite 100 power station in a mid-January test; the reviewer blames the low winter sun angle. Measurement method not stated. |
| CleanTechnica | 450 W | 100% | Reviewer reports consistently getting 450 W on sunny days in southwestern New Mexico while charging several large power stations, repositioning the panel through the day. Unit supplied by ZOUPW; metering method not stated. Published December 2025. |
| ZOUPW 480W Bifacial Portable Solar Panel N-Type 16BB (ZP-DS480W) | ZOUPW 450W Portable Solar Panel N-Type 16BB (ZOUPW-EZ450W) | |
|---|---|---|
| Output | ||
| Rated power | 480 W | 450 W |
| Tested output | Not tested (estimated 91%) | 450 W (100%) |
| Efficiency | 25.6% (ZOUPW's 'up to 25.6%' figure, not stated as cell or module; the Amazon listing says 25%+) | 25% (cell efficiency per ZOUPW's spec table for the 450W Standard) |
| Cells | Monocrystalline (N-type, 16BB, 182 mm cells) | Monocrystalline (N-type, 16BB) |
| Bifacial | Yes, up to 144 W more from the back | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 49.3 V | 45.9 V |
| Voltage at max power (Vmp) | 42.5 V | 38.3 V |
| Short-circuit current (Isc) | 12 A | 12.4 A |
| Current at max power (Imp) | 11.3 A | 11.7 A |
| Connections | ||
| Cables included | 13 ft 12AWG solar extension cable, 2 ft 12AWG 4-in-1 adapter cable (DC7909 with DC8020 adapter, XT60, Anderson) | 13 ft 12AWG solar extension cable, 4-in-1 adapter cable (DC7909 with DC8020 adapter, XT60, Anderson) |
| Build | ||
| Weight | 22.5 lb (10.2 kg) | 29.5 lb (13.4 kg) |
| Folded size | 34.65 x 32.56 x 3.35 in (880 x 827 x 85 mm) | 30.4 x 34.6 x 3.5 in (773 x 878 x 90 mm) |
| Unfolded size | 138.58 x 32.56 x 0.87 in (3520 x 827 x 22 mm) | 121.8 x 34.6 x 0.8 in (3095 x 878 x 20 mm) |
| Kickstand | - | Yes |
| Water resistance | IP68 | IP68 |
| Warranty | 3 years | 3 years |
