Solar Cell 129 × 129 mm – Technical Specifications

Product Overview

High-efficiency monocrystalline solar cell designed for solar panels and photovoltaic applications. Suitable for DIY solar modules, solar charging systems, educational projects, and renewable energy systems.

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Electrical Specifications (STC)

(Standard Test Conditions: AM1.5, 1000 W/m², 25°C)

• Maximum Power (Pmax): 3.0 – 3.4 W

• Open Circuit Voltage (Voc): 0.62 – 0.64 V

• Short Circuit Current (Isc): 0.95 – 1.0 A

• Voltage at Maximum Power (Vmp):  5 – 5.4 V

• Current at Maximum Power (Imp): 0.9 –  0.96 A

• Cell Efficiency: 20% – 22%

Mechanical Specifications

• Cell Type: Monocrystalline Silicon

• Cell Dimensions: 129 mm × 129 mm

• Cell Thickness: 160 – 200 µm

• Busbars: 5BB or 9BB (depending on model)

• Front Contact: Silver busbars

• Back Contact: Aluminum layer with silver pads

Optical & Surface Specifications

• Surface Coating: Anti-Reflective Coating (ARC)

• Color: Dark Blue / Black

• Front Grid Pattern: Fine silver fingers for maximum light absorption

Temperature Characteristics

• Operating Temperature: -40°C to +85°C

• Temperature Coefficient (Power): -0.40 % / °C

• Temperature Coefficient (Voltage): -0.30 % / °C

• Temperature Coefficient (Current): +0.05 % / °C

Applications

• Solar panel manufacturing

• DIY solar modules

• Solar battery chargers

• Educational solar projects

• Renewable energy research

• Portable solar power systems

Features

• High conversion efficiency

• Excellent low-light performance

• Anti-reflective coating for improved absorption

• Durable monocrystalline silicon structure

• Ideal for custom photovoltaic panels

Package Includes

• 1 × Monocrystalline Solar Cell (129 × 129 mm)