A 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.
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% ("up to"; the listing does not say whether this is cell or module efficiency) |
| Cells | Monocrystalline (N-type, 16BB) |
| Bifacial | Yes |
| Connections | |
| Output connector | MC4 |
| Build | |
| Dimensions | 35.63 x 23.03 x 1.18 in (each panel) |
| Frame | anodized aluminum |
| Glass | low-iron glass |
| Junction box rating | IP68 |
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.
Amazon $229.99 HQST $229.99A 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 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 $599.99More from ECO-WORTHY: every ECO-WORTHY product ranked.
