Large bifacial panels for an off-grid ground mount or barn roof with a high-voltage MPPT controller. For a permitted home rooftop, SUNGOLDPOWER’s UL-listed 590 W panel is the better buy.
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 | 2,240 W |
| Efficiency | 21.7% (module efficiency) |
| Cells | Monocrystalline (144 half-cut 182 mm cells; SUNGOLDPOWER's page and the Amazon title say N-type (Amazon adds 16BB), while the datasheet file and the Amazon title also say PERC) |
| Bifacial | Yes |
| Electrical | |
| Open-circuit voltage (Voc) | 50.1 V |
| Voltage at max power (Vmp) | 42.1 V |
| Short-circuit current (Isc) | 14.1 A |
| Current at max power (Imp) | 13.3 A |
| Voc temperature coefficient | -0.3%/°C |
| Build | |
| Weight | 70.4 lb (31.8 kg) |
| Dimensions | 89.72 x 44.65 x 1.38 in (each panel) |
| Frame | anodized aluminum alloy |
| Glass | 2.0 mm AR-coated heat-strengthened front, 2.0 mm heat-strengthened back (dual glass) |
| Junction box rating | IP68 |
| Warranty | 12 years |
| Output warranty | 30-year linear power warranty |
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 low-cost large-format panel for a home rooftop, shed or ground-mount array on a 24 V or 48 V system with an MPPT controller. Too big and too high-voltage for most RV and van setups.
Amazon $279.99 JJN $289Two of HQST’s compact 200 W panels in one box, a low-cost way to put 400 W on a 12 V van, RV or shed system. Check the single-panel price first, since two singles have been cheaper.
Amazon $229.99 HQST $229.99More from SUNGOLDPOWER: every SUNGOLDPOWER product ranked.
