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.
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 | 640 W |
| Efficiency | 25% (cell efficiency, "up to"; datasheet module efficiency 22.2%) |
| Cells | Monocrystalline (N-type, 18BB (per Renogy's product page and Amazon; the datasheet says only monocrystalline, 60 cells)) |
| Bifacial | No |
| Electrical | |
| Open-circuit voltage (Voc) | 43.8 V |
| Voltage at max power (Vmp) | 37.9 V |
| Short-circuit current (Isc) | 8.9 A |
| Current at max power (Imp) | 8.5 A |
| Voc temperature coefficient | -0.3%/°C |
| Connections | |
| Output connector | Solar connectors (IP68) |
| Build | |
| Dimensions | 64.6 x 34.7 x 1.4 in (each panel) |
| Frame | anodized aluminum alloy |
| Glass | 3.2 mm tempered |
| Junction box rating | IP68 |
| Warranty | 10 years |
| Output warranty | 95% output for 5 years, 90% for 10 years, 80% for 25 years |
A low-cost 200 W panel for van, RV or shed systems with an MPPT controller or a power station. The bifacial back helps most on a ground mount over light-colored ground.
Amazon $139.99 JJN $149A cheap way to put 400 W on an RV, boat or shed roof where smaller panels fit better than large ones. Buyers who want full published specs and a stated warranty pay a little more for HQST’s 400 W pair.
Amazon $229.59A 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 $239.99More from Renogy: every Renogy product ranked.
