The HQST 400W (2 x 200W) N-Type 16BB Compact Rigid Solar Panel 2-Pack is the better rigid solar panel overall, rated 4.1 to 3.8. The HQST 400W (2 x 200W) N-Type 16BB Compact Rigid Solar Panel 2-Pack costs $24.78 less ($229.99 vs $254.77).
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 large panel for a shed, greenhouse or ground mount with an MPPT controller. Buyers who want a stated warranty and full spec sheet should pay a little more for a better-documented brand.
Amazon $254.77Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every 150 w and up rigid solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | HQST 400W (2 x 200W) N-Type 16BB Compact Rigid Solar Panel 2-Pack | DOKIO 400W 31V Monocrystalline Rigid Solar Panel |
|---|---|---|
| Overall rating | 4.1/5 | 3.8/5 |
| Value 45% | 88 $0.57 per rated watt | 82 $0.64 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 51 IP65, 5-year warranty | 50 IP rating and warranty not published (neutral score used) |
| Efficiency 15% | 100 25.4% claimed efficiency | 50 efficiency not published (neutral score used) |
| HQST 400W (2 x 200W) N-Type 16BB Compact Rigid Solar Panel 2-Pack | DOKIO 400W 31V Monocrystalline Rigid Solar Panel | |
|---|---|---|
| Output | ||
| Rated power | 400 W | 400 W |
| Efficiency | 25.4% (cell efficiency, "up to" (the datasheet labels it module efficiency)) | - |
| Cells | Monocrystalline (N-type TOPCon, 16BB) | Monocrystalline |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 22.4 V | 37.1 V |
| Voltage at max power (Vmp) | 19 V | 31 V |
| Short-circuit current (Isc) | 11 A | 13.2 A |
| Current at max power (Imp) | 10.5 A | - |
| Voc temperature coefficient | -0.3%/°C | - |
| Series / parallel | Yes | Yes |
| Connections | ||
| Output connector | MC4 | MC4 |
| Build | ||
| Weight | - | 49.4 lb (22.4 kg) |
| Dimensions | 46.3 x 30.1 x 1.2 in (each panel) | 67.8 x 44.6 x 1.2 in |
| Frame | anodized aluminum alloy | aluminum |
| Glass | 3.2 mm tempered | tempered |
| Junction box rating | IP65 | - |
| Warranty | 5 years | - |
| Output warranty | 25-year power output warranty; maker claims 87.4% output after 30 years | - |
