A simple way to buy 400 W of Renogy’s 200 W panel for an RV roof, shed or ground mount with an MPPT controller. Compare it with two singles first, since the pack is not always cheaper.
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
The rating comes from 4 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 |
| Efficiency | 25% (cell efficiency; datasheet module efficiency 20.7%) |
| Cells | Monocrystalline (N-type, 16BB) |
| Bifacial | No |
| Electrical | |
| Open-circuit voltage (Voc) | 37.4 V |
| Voltage at max power (Vmp) | 31 V |
| Short-circuit current (Isc) | 6.8 A |
| Current at max power (Imp) | 6.5 A |
| Voc temperature coefficient | -0.3%/°C |
| Series / parallel | Yes |
| Connections | |
| Output connector | Solar connectors (IP67) |
| Build | |
| Dimensions | 49.7 x 30.1 x 1.2 in (each panel) |
| Frame | anodized aluminum alloy |
| Glass | 3.2 mm tempered |
| Junction box rating | IP65 |
| Warranty | 10 years |
| Output warranty | 95% output for 5 years, 90% for 10 years, 80% for 25 years |
A large-panel pair for a cabin, shed or ground-mount array with a high-voltage MPPT controller. Too big and too high-voltage for most van and small RV setups.
Amazon $599.99 Renogy $599.99A well-documented 200 W panel for a 12 V RV, boat or cabin system from an established brand. Buyers chasing the lowest price per watt can find 200 W for much less.
Amazon $189.99 Rich Solar $239.99A 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 $239.99More from Renogy: every Renogy product ranked.
