SunPower Maxeon 6 – 420 W High-Efficiency Residential Solar Panel

The SunPower Maxeon 6 420 W solar panel represents the leading edge in residential solar technology, offering industry-best efficiency, robust durability, and an ultra-long warranty. With advanced N-type back-contact cells and a compact 66-cell format, it’s ideal for homeowners who demand maximum output in limited space. 

Key Features

• Rated Power Output: 420 W (also available in 425, 435, 440 W variants) 

• Module Efficiency: Up to ~21.7 % (420 W variant) and up to 22.8 % for higher wattage models 

• Cell Technology: 66 Maxeon Gen 6 N-type monocrystalline cells for lower degradation, better shade tolerance, and higher output over lifetime 

• Durability: Tested for extreme conditions — hail, snow, wind, high/low temps. Example: –40 °C to +85 °C operating range. 

• Aesthetics: Elegant all-black (black frame) design with compact form factor (approx. 1,872 × 1,032 × 40 mm; weight ~21.8 kg) 

• Warranty: Industry-leading 40-year product and power warranty—first-year minimum output 98 % and max yearly degradation 0.25 % 

Why Choose This Panel

• Maximise space utilisation: High power density allows fewer panels to meet energy goals.

• Long-term savings: With superior efficiency and durable build, it offers excellent ROI over decades.

• Future-ready reliability: The robust cell and module design withstands real-world conditions with minimal performance loss.

Ideal For

Residential rooftops especially those with limited area. Also suited for premium installations where aesthetics and long-term performance matter.

Document: Specification Sheet