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445W JAM54D41-445 BiFacial Solar Panel

445W JAM54D41-445 BiFacial Solar Panel

$199.00 CAD
$269.00 CAD $199.00 CAD
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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 — 445 W of rated power with ~22% efficiency, so you can hit your target array size with fewer panels.
  • Bifacial gain — glass-glass construction captures extra light reflected from roofs, decks, snow, or the ground.
  • Rugged glass-glass — built to handle vibration, hail, and heavy snow loads, ideal for cabins and mobile rigs.
  • All-weather ready — solid performance in heat, wind, and low light to keep your batteries charging longer.

Built for cabins, RVs & mobile rigs

  • Less panels per array: fewer panels to reach your target array—perfect on small cabin roofs and RVs not too 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 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 reflective ground mounts.
  • 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)

12V: 40A MPPT Heavy Duty 12V: MC4010 40A MPPT 24V: 20A MPPT Compact

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-year product / 30-year performance

Downloads

Datasheet (PDF) Warranty (PDF) Installation Manual (PDF)

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 an airflow gap to keep cell temps down and output up. We recommend our Z-brackets.
  • Cabins/ground mounts: aim for a sturdy racking base and, if possible, seasonal tilt for better winter performance. We recommend Kinetic Racking (contact us for a kit).
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 arrange freight or coordinate pickup at a local distributor warehouse.

Pickup: This product can be picked up directly from several locations across the country, including Delta BC, Calgary AB, Edmonton AB, Stratford ON, and Dartmouth NS. Please advise if you’d like to pick up and save shipping fees.

Specs may vary slightly by batch; always refer to the official datasheet for exact electrical characteristics and installation requirements.

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