Sunpro Power 440W TOPCon Bifacial Solar Panel – SPDG440-N108M

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Sunpro Power 440W 1500V TOPCon Bifacial Solar Panel – SPDG440-N108M10 is a high-efficiency N-type TOPCon bifacial module engineered for residential, commercial, and utility-scale photovoltaic installations. Each panel delivers 440 watts at STC with 22.53% module efficiency — the highest in the SPDGxxx-N108M10 series — in a 108 half-cut cell layout using 182×91mm N-type monocrystalline TOPCon cells. 

The SPDG440-N108M10 is optimized for 1500 VDC string inverter systems rated to DC 1500V by both TÜV and UL, with front-side 5,400 Pa snow load and rear-side 2,400 Pa wind load ratings. The 25-year product warranty and 30-year power warranty — guaranteeing 89.4% output at year 25 and 87.4% at year 30 — substantially exceed the industry common standard and are backed by Sunpro's standard tiered warranty structure.

Key Features:

• N-Type TOPCon Cell Technology — 22.53% Efficiency — N-type monocrystalline TOPCon cells deliver better reliability and lower LID/LeTID attenuation than P-type PERC cells, with maximum module efficiency reaching 22.53% and excellent low-light performance under haze, overcast, and early morning conditions
• Bifacial Double-Glass Construction — >80% Bifaciality — Bifacial N-type cells with >80% bifaciality factor and double-glass construction enable dual-sided power generation; 2.0mm ultra-clear embossed front glass and 2.0mm semi-tempered rear glass deliver rear-side power gain depending on installation albedo, significantly reducing LCOE on ground-mount and elevated installations
• SUNPRO Multi-Busbar Half-Cut Cell Technology — Leading solar cell cutting process with multi-busbar design using SUNPRO Technology reduces internal resistive losses and improves overall component power output and yield
• Excellent Anti-PID Performance — PID attenuation probability minimized through battery production technology optimization and material control; maintains rated output over the module's full service life in 1500 VDC high-voltage string configurations
• 1500 VDC System Voltage Rating — TÜV & UL Certified — Rated to DC 1500V by both TÜV and UL, enabling longer string configurations that reduce balance-of-system components including combiner boxes, string runs, and DC cabling
• Wider Application — Double Glass Durability — No water permeability and high wear resistance; suitable for high-humidity, windy, and dusty environments where glass-backsheet modules face reliability challenges; validated for 5,400 Pa snow load and 2,400 Pa wind load
• 0/+5W Positive Power Tolerance — Every module guaranteed to deliver at or above rated output at STC; ensures predictable string performance and consistent array output
  

The SPDG440-N108M10 operates across -40°C to +85°C with a Normal Operating Cell Temperature of 42±2°C. At NMOT conditions the module delivers 329W at 11.00A and 29.90V, reflecting real-world energy yield under typical outdoor operating temperatures. The temperature coefficient of -0.30%/°C for Pmax is competitive for N-type TOPCon construction, and the 15% rear-side albedo example shows 440W front-side output scaling to 506W total with rear-side contribution — a meaningful energy yield improvement on ground-mount and carport installations with moderate ground reflectance. The IP68-rated junction box and MC4-compatible connectors with symmetrical 1100mm cable lengths on both positive and negative leads complete a module engineered for straightforward field installation.

Technical Specifications: