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JA Solar
445W JAM54D41-445 BiFacial Solar Panel
445W JAM54D41-445 BiFacial Solar Panel
Regular price
$269.00 CAD
Regular price
$269.00 CAD
Sale price
$269.00 CAD
Quantity
1 review
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JA Solar JAM54D41-445/LB — 445W Bifacial TOPCon Module
Power more days off-grid with fewer panels. This 445 W bifacial, glass-glass module packs premium efficiency into a mid-size footprint—great for cabins, off-grid homes, RVs, fifth-wheels, and cargo/camper builds that want maximum wattage per square foot.
Why you’ll love this
| High Output Delivers 445 W of rated power with ~22% efficiency, letting you meet your energy target with fewer panels. |
| Bifacial Gain Glass-glass design captures extra sunlight reflected from roofs, decks, snow, or the ground. |
| Rugged Glass-Glass Built to handle vibration, hail, and heavy snow loads—perfect for cabins and mobile rigs. |
| All-Weather Ready Performs reliably in heat, wind, and low-light conditions so your batteries stay charging longer. |
Built for cabins, RVs & mobile rigs
- More watts per roof: Fewer panels to reach your target array size—ideal on small cabin roofs and RVs crowded with vents, fans, and racks.
- Durability you can trust: Glass-glass laminate stands up to road vibration, hail, and snow better than many single-glass modules.
- Early/late power: Excellent low-light response keeps the batteries charging in the morning and late afternoon when cabins and campers still need energy.
- Bifacial advantage: Get bonus production over light roofs, decks, snow, or ground mounts with reflective surfaces.
- Easy to pair: Works great with modern MPPT charge controllers and 12/24/48 V battery systems (size your controller for Voc and current).
Controller & Wiring Notes
- Use an MPPT controller sized for this panel’s open-circuit voltage (Voc) and Isc.
- Minimum controller size: 40 A for 12 V systems or 20 A for 24 V systems (per 445 W panel, typical).
- MC4-type connectors (EVO2 compatible) simplify parallel/series wiring with proper branch connectors.
- Protect strings with correctly sized fuses/breakers and outdoor-rated cable management.
Suggested Controllers (Bluetooth Enabled):
Quick specs
| Power (Pmax) | 445 W |
| Cell technology | n-type TOPCon, monocrystalline, half-cut (108 cells) |
| Construction | Glass-glass (bifacial), black frame |
| Module efficiency | 22.3% |
| Vmp / Imp (STC) | 32.65 V / 13.63 A |
| Voc / Isc (STC) | 39.10 V / 14.40 A |
| Max system voltage | 1500 V DC |
| Max series fuse | 30 A |
| Dimensions (L×W×H) | 1762 × 1134 × 30 mm 69.3 × 44.6 × 1.18 in |
| Weight | 22 kg (48.5 lb) |
| Connectors | MC4-EVO2A (QC 4.10-35 compatible) |
| Cable length / gauge | 1200 mm (+/−), 4 mm² (≈12 AWG) |
| Junction box | IP68, 3 diodes |
| Operating temp | −40 °C to +85 °C |
| NOCT | 45 ± 2 °C |
| Mechanical loads | Front 5400 Pa / Back 2400 Pa |
| Bifaciality (typ.) | 80% ± 10% |
| Warranty | 15-yr product / 30-yr performance |
Downloads
Great for
- Cabins, tiny homes, and off-grid cottages targeting fewer, higher-watt modules
- RVs, fifth-wheels, skoolies, cargo/camper builds with ample roof space
- Ground mounts and carports with reflective ground cover for bifacial gain
- Space-constrained rooftops needing high efficiency per m²
Fit & Mounting Tips
- Panel size ≈ 69.3" × 44.6" × 1.18" — measure clearances around fans, A/C units, and racks.
- For RVs/trailers: use low-profile mounts and leave a small airflow gap to keep cell temps down and output up. We recommend using our Z-Brackets (2 sets suggested for large panels)
- Cabins/ground mounts: aim for a sturdy racking base and maintain seasonal tilt if practical for winter performance.
Freight & pickup: This panel’s dimensions require LTL freight or warehouse pickup. Adding this item to your cart will prevent checkout. Please contact us first—we’ll look up your order, arrange freight, or coordinate pickup at a local distributor warehouse.
Specs may vary slightly by batch; always refer to the official datasheet for exact electrical characteristics and installation requirements.
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1 review
K
Kelly K Excellent service, knowledgeable, helpful, & consistent speedy response to questions. I finally feel confident that my solar off-grid set up, will be effective.