A low-cost way to put 800 W on a shed roof or ground mount with an MPPT controller. Buyers who want a stated warranty and a full spec sheet should pay a little more for a better-documented brand.
Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.
Every DOKIO 400W model we rank, smallest first. Ratings compare each against its own size.
| Model | Rated output | Rating | Price |
|---|---|---|---|
| DOKIO 400W Rigid | 400 W | 3.8/5 | $254.77 |
| DOKIO 800W (2 x 400W) 2-Pack (this one) | 800 W | 3.8/5 | $489.77 |
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 | 800 W |
| Module efficiency | 20.5% (rated power over panel area) |
| Cells | Monocrystalline |
| Bifacial | No |
| Electrical | |
| Open-circuit voltage (Voc) | 37.1 V |
| Voltage at max power (Vmp) | 31 V |
| Short-circuit current (Isc) | 13.2 A |
| Series / parallel | Yes |
| Connections | |
| Output connector | MC4 |
| Build | |
| Dimensions | 67.8 x 44.6 x 1.2 in (each panel) |
| Frame | aluminum |
| Glass | tempered |
A low-cost large bifacial panel for a home rooftop, shed or ground-mount array on a 24 V or 48 V system with an MPPT controller. The thin paperwork and unstated warranty make it a price play rather than a long-term pick.
Amazon $269.99A low-cost 430 W bifacial panel for a home rooftop, shed or ground-mount array, if you can get the electrical specs from the seller before buying. Buyers who want a datasheet and stated warranty should look at JJN’s or Callsun’s large panels.
Amazon $279.99A 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 $215.99Compare the DOKIO 800W (2 x 400W) 2-Pack with any other rigid solar panel →
More from DOKIO: every DOKIO product ranked.
