Maxeon 3 415 Black
#6 in 150 W and upFull review
A premium all-black rooftop panel at a budget price for a home system bought as a full set, with slow aging that pays off over decades.
Signature Solar $141.10 Solar Cellz USA $324$141.10
The Maxeon 3 415 Black is the better rigid solar panel overall, rated 4.6 to 4.0. The Maxeon 3 415 Black leads on value and durability. The Maxeon 3 415 Black costs $138.89 less ($141.10 vs $279.99).
JJN 425W Bifacial (JJN-SP-425W-N)
#28 in 150 W and upFull review
A 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$279.99
Prices 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.
Which should you buy?
- Choose the Maxeon 3 415 Black for value ($0.34 per rated watt vs $0.66 per rated watt) and durability (IP68, 25-year warranty vs IP68, 5-year warranty).
Scores side by side
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 | Maxeon 3 415 Black | JJN 425W Bifacial (JJN-SP-425W-N) |
|---|---|---|
| Overall rating | 4.6/5 | 4.0/5 |
| Value 45% | 100 $0.34 per rated watt | 80 $0.66 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 | 67 IP68, 5-year warranty |
| Efficiency 15% | 78 21.9% module efficiency | 74 21.7% module efficiency (from size and rated power) |
Specifications
| Maxeon 3 415 Black | JJN 425W Bifacial (JJN-SP-425W-N) | |
|---|---|---|
| Output | ||
| Rated power | 415 W | 425 W |
| Module efficiency | 21.9% | 21.7% (rated power over panel area) |
| Claimed efficiency | 21.9% (module efficiency of the 415 W version, from the datasheet (the 420 W version is 22.2%)) | 25% (published as "25+%"; the maker does not say whether this is cell or module efficiency) |
| Cells | Monocrystalline (112 Maxeon Gen 3 back-contact cells) | Monocrystalline (N-type, 16BB, 182 mm full cells, Grade A+) |
| Bifacial | No | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 40.7 V | 38.6 V |
| Voltage at max power (Vmp) | 35.3 V | 32.1 V |
| Short-circuit current (Isc) | 12.6 A | 13.8 A |
| Current at max power (Imp) | 11.8 A | 13.2 A |
| Voc temperature coefficient | -0.2%/°C | - |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | Stäubli MC4 | MC4 |
| Build | ||
| Weight | 46.7 lb (21.2 kg) | 53.6 lb (24.3 kg) |
| Dimensions | 71.34 x 41.18 x 1.57 in | 67.8 x 44.7 x 1.2 in |
| Frame | Class 1 black anodized aluminum | anodized aluminum |
| Glass | high-transmission tempered, anti-reflective | tempered, dual-glass construction |
| Junction box rating | IP68 | IP68 |
| Warranty | 25 years | 5 years |
| Output warranty | 25 years standard (40 with a Maxeon-partner install): at least 98% in year 1, then no more than 0.25% loss a year | 30-year performance warranty, 87.4% output |
| Released | - | 2026-02 |