LONGi Solar Products
8 products across Solar Panels. Efficiency range: 21.6%–23%.
LONGi Solar Panel Overview
All LONGi Solar Panels (8)
| Model | Power | Efficiency | Cell Type | Warranty | Degradation |
|---|---|---|---|---|---|
| Hi-MO 7 620W | 620W | 23% | HPBC (Back Contact N-type) | 12/30 yr | 0.35%/yr |
| Hi-MO 7 590W | 590W | 22.8% | HPBC (Back Contact N-type) | 12/30 yr | 0.4%/yr |
| Hi-MO 6 580W | 580W | 22.3% | PERC Mono Half-cut | 12/25 yr | 0.5%/yr |
| Hi-MO X6 Max 470W | 470W | 22.3% | TOPCon N-type | 15/30 yr | 0.4%/yr |
| Hi-MO X6 445W | 445W | 22% | TOPCon N-type | 12/25 yr | 0.4%/yr |
| Hi-MO 6 Scientist 550W | 550W | 22% | PERC Mono | 12/25 yr | 0.5%/yr |
| Hi-MO 6 Artist 440W | 440W | 22% | PERC Mono | 12/25 yr | 0.5%/yr |
| Hi-MO 6 Explorer 430W | 430W | 21.6% | PERC Mono | 12/25 yr | 0.5%/yr |
Sorted by efficiency. Click any model for full specifications and review.
Estimated System Costs with LONGi Panels
| System Size | Panels Needed | Est. Cost (before ITC) | After 30% ITC |
|---|---|---|---|
| 5 kW | ~9 panels | $12,500–$17,500 | $8,750–$12,250 |
| 8 kW | ~13 panels | $20,000–$28,000 | $14,000–$19,600 |
| 10 kW | ~17 panels | $25,000–$35,000 | $17,500–$24,500 |
| 12 kW | ~20 panels | $30,000–$42,000 | $21,000–$29,400 |
Estimates based on national average installed costs of $2.50–$3.50/watt. Panel count uses the Hi-MO 7 620W (620W). Actual prices vary by location and installer.
About LONGi
LONGi manufactures solar panels with 8 models in their 2026 product lineup. Their solar panels range from 430W to 620W with efficiencies of 21.6%–23%, using HPBC (Back Contact N-type) and PERC Mono Half-cut and TOPCon N-type and PERC Mono cell technology. Manufacturing takes place in China.
Quick Facts
- Total Products: 8 models
- Categories: Solar Panels
- Manufacturing: China
- Best Efficiency: 23% (Hi-MO 7 620W)
- Max Power: 620W (Hi-MO 7 620W)
Frequently Asked Questions
How many solar products does LONGi offer in 2026?
LONGi offers 8 products in their 2026 lineup: 8 solar panels.
What is the most efficient LONGi solar panel?
The most efficient LONGi solar panel is the Hi-MO 7 620W at 23% efficiency with 620W output. LONGi panels range from 21.6% to 23% efficiency across 8 models.
What is the most powerful LONGi solar panel?
The highest-wattage LONGi panel is the Hi-MO 7 620W at 620W. LONGi's panel lineup ranges from 430W to 620W, using HPBC (Back Contact N-type) and PERC Mono Half-cut and TOPCon N-type and PERC Mono cell technology.
What warranty does LONGi offer on solar panels?
LONGi offers up to 15-year product warranty and up to 30-year performance warranty on their solar panels. The average annual degradation rate is 0.44%.
Where are LONGi solar panels manufactured?
LONGi solar panels are manufactured in China.