Aptos DNA-108 N-Type 440
#1 in 150 W and upFull review
A low-cost all-black rooftop panel with an unusually long 30-year product warranty, for a home system bought as a full set of panels.
Signature Solar $189.20$189.20
4.7/5
A well-priced all-black bifacial rooftop panel from a top-tier maker for a home grid-tie system bought as a full set.
- 440 WRated output
- $0.43Price / W
- 39.4 VOpen-circuit voltage
- 47.4 lbWeight
- 25 yearsWarranty
Check price at US Solar Supplier$189
Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 25-year product warranty and 30-year output warranty from one of the world’s biggest panel makers
- Glass on both sides makes extra power from light reflected off a light roof or the ground
- About 43 cents a watt at US Solar Supplier for an all-black, UL-listed rooftop panel
Cons
- Sold mainly through solar wholesalers by the pallet; few stores sell single panels
- No US retail store from JA itself, so warranty claims go through the installer or seller
- No independent output test yet
How it scores
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.
Specifications
| Model number | JAM54D41-440/MB |
|---|---|
| Output | |
| Rated power | 440 W |
| Module efficiency | 22.5% |
| Claimed efficiency | 22.5% (module efficiency of the 440 W version, from the datasheet (JA quotes up to 26% for the cells alone)) |
| Cells | Monocrystalline (N-type Bycium+ TOPCon, 108 half-cut bifacial cells, 16 busbars) |
| Bifacial | Yes |
| Electrical | |
| Open-circuit voltage (Voc) | 39.4 V |
| Voltage at max power (Vmp) | 33.4 V |
| Short-circuit current (Isc) | 13.8 A |
| Current at max power (Imp) | 13.2 A |
| Voc temperature coefficient | -0.2%/°C |
| Series / parallel | Yes |
| Connections | |
| Output connector | QC 4.10-351 or MC4-EVO2 |
| Build | |
| Weight | 47.4 lb (21.5 kg) |
| Dimensions | 67.8 x 44.6 x 1.18 in |
| Frame | black, 30 mm deep |
| Glass | 1.6 mm front and rear (dual glass) |
| Junction box rating | IP68 |
| Warranty | 25 years |
| Output warranty | 30 years: no more than 1% loss in year 1, then no more than 0.4% a year (87.4% at 30 years) |
Alternatives in this size
Trina Vertex S+ 16020W (36 x 445W) Pallet
#3 in 150 W and upFull review
A very cheap pallet of black-framed rooftop-size panels for a large ground-mount or off-grid array where a UL or CEC listing isn’t needed.
US Solar Supplier $5,499.99$5,499.99
Hyundai HiN-T440NF(BK) 440W Bifacial
#4 in 150 W and upFull review
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 $228.80$207.66
Compare
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