LONGi vs Q Cells Solar Panels
Head-to-head comparison for Australian homes in 2026.
| Spec | LONGi | Q Cells |
|---|---|---|
| Country | China | South Korea |
| Tier | mid-range | mid-range |
| Efficiency | 22.3% | 22% |
| Product Warranty | 15 years | 15 years |
| Performance Warranty | 25 years | 25 years |
| Degradation Rate | 0.4%/yr | 0.35%/yr |
| Price per kW | $1000-$1500 | $1100-$1600 |
| Panel Wattage | 445W | 440W |
| Cell Type | HPBC Monocrystalline | N-type TOPCon Monocrystalline |
| Best For | Homeowners wanting top-tier technology at a mid-range price point | Homeowners wanting a well-rounded premium panel with strong local warranty support |
LONGi
Pros
- + World's largest mono-silicon producer (vertically integrated)
- + Industry-leading efficiency
- + 15-year product warranty
- + Heavy R&D investment
- + Excellent degradation rate
Cons
- - Slightly more expensive than Jinko/Trina
- - Chinese-manufactured
- - Some installers prefer other brands for availability
Q Cells
Pros
- + German engineering heritage
- + Strong AU support and warranty service
- + Good balance of quality and price
- + 15-year product warranty
- + Q.ANTUM NEO cell technology
Cons
- - Not the cheapest option
- - Efficiency not quite as high as SunPower/REC
- - Korean HQ but Chinese manufacturing