The Mission Solar MSX10 435 is the better rigid solar panel overall, rated 4.6 to 3.8. The Mission Solar MSX10 435 leads on durability and value. The Mission Solar MSX10 435 costs $69.52 less ($200.47 vs $269.99).
A US-built all-black rooftop panel at an import-like price, for homeowners or installers who want domestic content without paying a premium.
A1 Solar Store $200.47 The Solar Store $219 US Solar Supplier $224.99A 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 $269.99Prices were last checked October 26, 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 | Mission Solar MSX10 435 | EPOCH 430W Bifacial |
|---|---|---|
| Overall rating | 4.6/5 | 3.8/5 |
| Value 45% | 99 $0.46 per rated watt | 83 $0.63 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 100 IP68, 25-year warranty | 40 IP68 |
| Efficiency 15% | 86 22.3% module efficiency | 80 22% module efficiency (from size and rated power) |
| Mission Solar MSX10 435 | EPOCH 430W Bifacial | |
|---|---|---|
| Output | ||
| Rated power | 435 W | 430 W |
| Module efficiency | 22.3% | 22% (rated power over panel area) |
| Claimed efficiency | 23% ("up to 23% efficiency" for the series; the 435 W version's module efficiency is 22.3%) | 25% (published as "up to 25%" without saying whether this is cell or module efficiency) |
| Cells | Monocrystalline (N-type TOPCon, 108 half cells) | Monocrystalline (N-type, 16BB, half-cut, Grade A+) |
| Bifacial | No | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 39.6 V | 39.7 V |
| Voltage at max power (Vmp) | 33.3 V | 33.1 V |
| Short-circuit current (Isc) | 13.8 A | 13.6 A |
| Current at max power (Imp) | 13.1 A | 13 A |
| Voc temperature coefficient | -0.2%/°C | - |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | Stäubli MC4 | MC4 |
| Build | ||
| Weight | 47 lb (21.3 kg) | 53.8 lb (24.4 kg) |
| Dimensions | 1722 x 1134 x 35 mm | 67.8 x 44.65 x 1.18 in |
| Frame | 35 mm black anodized aluminum | aluminum, pre-drilled mounting holes |
| Glass | 3.2 mm AR-coated tempered | - |
| Junction box rating | IP68 | IP68 |
| Warranty | 25 years | - |
| Output warranty | 30 years: at least 99% after year 1, 94.05% at 12 years, 88.2% at 25 years and 86% at 30 years | 84.7% output after 30 years (0.40% a year), per the listing's graphic |
