Haitai Solar HTM620DMH5-78NT 620W TOPCon Bifacial High-Efficiency Sola

Minimum Order 1 pallet / 36 Panels

Haitai Solar HTM620DMH5-78NT
620W TOPCon Bifacial High-Efficiency Solar ModuleMaximum power from both sides — reliable, efficient, and built to last.The Haitai TaiHe 2.0 HTM620DMH5-78NT is a premium 78-cell bifacial solar panel featuring advanced N-type TOPCon technology. With a module efficiency of 22.18% and excellent bifacial performance, it delivers outstanding energy yield in real-world conditions, making it an ideal choice for residential rooftops, commercial installations, and ground-mounted systems.Key Features & Benefits

Rated Power: 620W (STC)
Module Efficiency: 22.18%
Bifacial Power Gain (Rear Side):
- 5% gain → 651W (23.29% efficiency)
- 15% gain → 713W (25.51% efficiency)
- 25% gain → 775W (27.73% efficiency)
Ultra-Low Degradation: Only 1.0% in the first year, then ≤0.4% per year
Excellent Temperature Coefficient: -0.29%/°C (better performance in hot climates)
High Durability: Withstands 5400Pa snow load and 2400Pa wind load
Advanced Anti-LID & Anti-PID technology for long-term reliability
Sleek Design: Black frame with uniform cell appearance

Warranty

12 years product warranty
30 years linear power warranty (with 0.4% annual degradation after year 1)

Ideal For

Residential rooftops
Commercial and industrial projects
Ground-mounted solar farms
High-albedo environments (white roofs, snow, sand)

Why choose the Haitai 620W Bifacial?
Superior energy production thanks to bifacial design, outstanding low-light and high-temperature performance, and rock-solid long-term reliability all backed by Haitai Solar’s quality manufacturing.STC: Irradiance 1000 W/m², Cell Temperature 25°C, AM 1.5

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