The JJN 400W (2 x 200W) N-Type 16BB Bifacial Rigid Solar Panel 2-Pack is the better rigid solar panel overall, rated 4.1 to 3.9. The JJN 400W (2 x 200W) N-Type 16BB Bifacial Rigid Solar Panel 2-Pack leads on durability and efficiency. The JJN 400W (2 x 200W) 10BB Bifacial Rigid Solar Panel 2-Pack (23%) costs $20 less ($239.99 vs $259.99).
Two of JJN’s N-type 200 W bifacial panels for a van, RV or shed system with an MPPT controller or a power station. Slightly cheaper per watt than buying the single panel twice.
Amazon $259.99 JJN $265A cheap, independently tested 400 W pair for a van, RV or shed on a budget. JJN’s newer N-type 2-pack costs a little more but comes with a full spec sheet and a stated warranty.
Amazon $239.99Prices 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 150 w and up rigid solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | JJN 400W (2 x 200W) N-Type 16BB Bifacial Rigid Solar Panel 2-Pack | JJN 400W (2 x 200W) 10BB Bifacial Rigid Solar Panel 2-Pack (23%) |
|---|---|---|
| Overall rating | 4.1/5 | 3.9/5 |
| Value 45% | 81 $0.65 per rated watt | 86 $0.60 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 100 best measured 91% of rated watts (1 test) |
| Durability 25% | 67 IP68, 5-year warranty | 24 IP65 |
| Efficiency 15% | 100 25% claimed efficiency | 67 23% claimed efficiency |
No independent test published yet.
| Tested by | Measured peak | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | - | 91% | 182 W from one 200 W panel of this model (sold singly as B09VS7PR2J); peak_w left null because the pack is rated 400 W. Sunny California day at 6,500 ft |
| JJN 400W (2 x 200W) N-Type 16BB Bifacial Rigid Solar Panel 2-Pack | JJN 400W (2 x 200W) 10BB Bifacial Rigid Solar Panel 2-Pack (23%) | |
|---|---|---|
| Output | ||
| Rated power | 400 W | 400 W |
| Tested output | - | 364 W (91%) |
| Efficiency | 25% (published as "25+%"; the maker does not say whether this is cell or module efficiency) | 23% ("up to"; the listing calls it conversion efficiency without saying cell or module) |
| Cells | Monocrystalline (N-type, 16BB, triple-cut cells, Grade A+) | Monocrystalline (10BB, Grade A cells) |
| Bifacial | Yes | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 28.1 V | - |
| Voltage at max power (Vmp) | 23.4 V | - |
| Short-circuit current (Isc) | 9.1 A | - |
| Current at max power (Imp) | 8.6 A | - |
| Connections | ||
| Output connector | MC4 | MC4 |
| Build | ||
| Dimensions | 53.7 x 30 x 1.2 in (each panel) | 53.7 x 30.3 x 1.18 in (each panel) |
| Frame | black anodized aluminum | black aluminum |
| Glass | tempered front, transparent backsheet | tempered |
| Junction box rating | IP68 | IP65 |
| Warranty | 5 years | - |
| Output warranty | 30-year performance warranty, 88.9% output | - |
