Two 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.
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 | 25.4% (cell efficiency, "up to" (the datasheet labels it module efficiency)) |
| Cells | Monocrystalline (N-type TOPCon, 16BB) |
| Bifacial | No |
| Electrical | |
| Open-circuit voltage (Voc) | 22.4 V |
| Voltage at max power (Vmp) | 19 V |
| Short-circuit current (Isc) | 11 A |
| Current at max power (Imp) | 10.5 A |
| Voc temperature coefficient | -0.3%/°C |
| Series / parallel | Yes |
| Connections | |
| Output connector | MC4 |
| Build | |
| Dimensions | 46.3 x 30.1 x 1.2 in (each panel) |
| Frame | anodized aluminum alloy |
| Glass | 3.2 mm tempered |
| Junction box rating | IP65 |
| Warranty | 5 years |
| Output warranty | 25-year power output warranty; maker claims 87.4% output after 30 years |
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 $289A 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 $149More from HQST: every HQST product ranked.
