The Hyundai HiN-T440NF(BK) 440W Bifacial is the better rigid solar panel overall, rated 4.7 to 4.5. The Hyundai HiN-T440NF(BK) 440W Bifacial leads on value. The Hyundai HiN-T440NF(BK) 440W Bifacial costs $38.33 less ($207.66 vs $245.99).
A solid all-black bifacial rooftop panel from a big-name maker for a home system of 10 or more panels, at a mid-range price per watt.
A1 SolarStore $207.66 Signature Solar $228.80A North American-made all-black rooftop panel for homeowners or installers who want domestic supply and a strong 30-year output warranty. Register it to get the full 25-year product warranty.
SolarTown $245.99 Solar Cellz USA $279.32Prices 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 | Hyundai HiN-T440NF(BK) 440W Bifacial | Silfab Prime NTC 440 |
|---|---|---|
| Overall rating | 4.7/5 | 4.5/5 |
| Value 45% | 98 $0.47 per rated watt | 90 $0.56 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 | 100 IP68, 12-year warranty |
| Efficiency 15% | 91 22.5% module efficiency | 92 22.6% module efficiency |
| Hyundai HiN-T440NF(BK) 440W Bifacial | Silfab Prime NTC 440 | |
|---|---|---|
| Output | ||
| Rated power | 440 W | 440 W |
| Module efficiency | 22.5% | 22.6% |
| Claimed efficiency | 22.5% (module efficiency of the 440 W version, from the datasheet (the series headline 22.79% is the 445 W version)) | 22.6% (module efficiency) |
| Cells | Monocrystalline (N-type TOPCon, 108 half-cut bifacial cells, 16 busbars) | Monocrystalline (N-type (NTC passivated rear), 108 half cells) |
| Bifacial | Yes | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 38.8 V | 39 V |
| Voltage at max power (Vmp) | 32.3 V | 33.4 V |
| Short-circuit current (Isc) | 14.4 A | 14.2 A |
| Current at max power (Imp) | 13.6 A | 13.2 A |
| Voc temperature coefficient | -0.2%/°C | -0.2%/°C |
| Series / parallel | Yes | Yes |
| Connections | ||
| Output connector | Stäubli MC4 (IP68) | Stäubli MC4 |
| Build | ||
| Weight | 54 lb (24.5 kg) | 46.3 lb (21 kg) |
| Dimensions | 67.8 x 44.6 x 1.2 in | 67.8 x 44.6 x 1.37 in |
| Frame | anodized aluminum alloy | black anodized aluminum |
| Glass | 2.0 mm semi-tempered front and rear (dual glass), anti-reflective front | 3.2 mm high-transmittance tempered, anti-reflective coating |
| Junction box rating | IP68 | IP68 |
| Warranty | 25 years | 12 years |
| Output warranty | 30 years: at least 99% in year 1, then no more than 0.4% loss a year (87.4% at 30 years) | 30 years: at least 98% after year 1, 94.7% at 12 years, 90.8% at 25 years and 89.3% at 30 years |
| Released | - | 2023-09 |
