QSun Solar Solar Panels Review 2026

Comprehensive analysis of QSun Solar's solar panel portfolio — 3 panels reviewed with detailed specifications, efficiency data, and technology breakdown.

3 Panels Up to 21.6% Efficiency 650W – 670W

QSun Solar

Company Overview

Key Statistics

Total Panels 3

Avg. Efficiency 21.2%

Max Efficiency 21.6%

Power Range 650W – 670W

Avg. Power 658W

Avg. Temp Coeff -0.35%/°C

Bifacial Panels 0 (0%)

Avg. Warranty 25 years

Technology Breakdown

Cell Technologies

Unknown 3 panels (100.0%)

Power Distribution

600-699W 3 panels (100.0%)

Top Picks from QSun Solar

Most Efficient

#	Model	Power	Efficiency	Tech
1	CSUN670-132M	670W	21.6%	Monocrystalline
2	CSUN655-132M	655W	21.1%	Monocrystalline
3	CSUN650-132M	650W	20.9%	Monocrystalline

Highest Power

#	Model	Power	Efficiency	Tech
1	CSUN670-132M	670W	21.6%	Monocrystalline
2	CSUN655-132M	655W	21.1%	Monocrystalline
3	CSUN650-132M	650W	20.9%	Monocrystalline

Best QSun Solar Panels by Use Case

Best for Commercial

500W+, ranked by power output

#1 CSUN670-132M

670W 21.6%

#2 CSUN655-132M

655W 21.1%

#3 CSUN650-132M

650W 20.9%

Pros & Cons

Strengths

Strong warranty coverage averaging 25 years
High-power panels available (up to 670W) for commercial applications

Considerations

Limited bifacial panel options
Limited adoption of latest cell technologies (TOPCon/HJT)

Efficiency Distribution

20-21%

33.3%

21-22%

66.7%

Frequently Asked Questions

QSun Solar offers 3 solar panel models with an average efficiency of 21.2%. Check their full panel lineup on ComparePV to find the best model for your needs.

QSun Solar manufactures panels ranging from 650W to 670W, covering both residential and commercial applications. Their portfolio includes Unknown (100%) cell technologies.

QSun Solar panels have an average efficiency of 21.2%, with their most efficient model reaching 21.6%. This puts them at a solid mid-range level in the current market.

QSun Solar panels come with an average performance warranty of 25 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.

QSun Solar offers panels in the residential-friendly 380–460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.

The Verdict

QSun Solar is a solid option, offering 3 panels suitable for commercial and utility-scale projects. With an average efficiency of 21.2% and top models reaching 21.6%, their panels deliver competitive performance.