Efficiency
21.0-22.8%
Warranty
25 Years
Output
400-445W
Price/Watt
$0.70-$1.10
Overview
LONGi is the world's largest manufacturer of monocrystalline silicon wafers and a top-5 panel maker. Their Hi-MO series pushes efficiency boundaries with HPBC back-contact cell technology. Known for aggressive R&D and continuously breaking efficiency records.
Technology
HPBC / TOPCon
Country
China
Best For
Technology-forward buyers who want cutting-edge cell technology at a fraction of the cost of premium US brands.
Pros
- Industry-leading R&D investment
- HPBC technology rivals SunPower IBC
- Very competitive pricing
- Vertically integrated (wafers to panels)
- World record cell efficiency holder
Cons
- All manufacturing in China
- Some tariff exposure in US market
- Rapid product cycles mean older models depreciate fast
- Warranty enforcement through Chinese entity