LONGi Solar vs Tongwei Solar
LONGi Solar vs Tongwei Solar β Side-by-side comparison of flagship series, max power, efficiency, warranty, and best-fit use cases. Request quotes from JUST SOLAR.
Head-to-head specs
| LONGi Solar | Tongwei Solar | |
|---|---|---|
| Tier | Tier 1 | Tier 1 |
| 2025 Shipments | 80+ GW | 50+ GW |
| Flagship Series | Hi-MO 9 (HPBC) | TWMND / TNC |
| Technology | HPBC / TOPCon | TOPCon N-type |
| Max Power | 635W | 720W |
| Max Efficiency | 24.43% | 23.5% |
| Warranty | 15yr product / 30yr power | 12yr product / 30yr power |
| Founded | 2000 | 2013 |
| Headquarters | Xi'an | Chengdu |
| Country | China | China |
Key strengths
- βHighest efficiency panels (HPBC 24%+)
- βLargest R&D investment in the industry
- βMonocrystalline silicon pioneer
- β15-year product warranty (industry-leading)
- βPremium brand positioning
Key strengths
- βWorld #1 solar cell + polysilicon producer
- βUltra-deep vertical integration
- βAggressive pricing (full chain cost advantage)
- βRapidly expanding module capacity
- βHigh-efficiency TNC TOPCon cells
Premium residential, space-constrained projects, efficiency-critical applications
Cost-sensitive large projects, buyers valuing cell-quality traceability, large-scale utility
π Verdict
On efficiency, LONGi Solar leads (24.43%). For peak wattage, Tongwei Solar offers the higher ceiling (720W). Choose LONGi Solar if your project matches: Premium residential, space-constrained projects, efficiency-critical applications. Choose Tongwei Solar if: Cost-sensitive large projects, buyers valuing cell-quality traceability, large-scale utility.
πΌ Ready to buy?
JUST SOLAR is an authorized distributor for both brands. Get a side-by-side quote with live FOB pricing and stock availability.