JUST☀️ Solar Modules
JUST HJT Bifacial 680-740W
Heterojunction bifacial — lowest annual degradation (0.26%/yr), class-leading heat and low-light performance
HJT bifacial modules using symmetrical amorphous-silicon layers. 85% bifaciality, -0.26%/°C temperature coefficient and industry-lowest 0.26%/yr annual degradation make HJT the optimal choice for coastal, high-humidity, high-temperature, or northern-latitude sites.
Power Range
680W – 740W
Max Efficiency
23.5%
Full Specifications
| Technology | HJT (Heterojunction) |
| Cell Type | N-type Monocrystalline |
| Power Range | 680W – 740W |
| Max Efficiency | 23.5% |
| Annual Degradation | 0.26%/yr (industry-best) |
| Bifaciality | 85% ± 5% |
| Temp Coefficient | -0.26%/°C |
| Cell Count | 132 (G12 / 210mm half-cut) |
| System Voltage | 1500V DC |
| Glass Configuration | Dual 2.0mm heat-strengthened |
| First-year Degradation | <0.5% |
| Product Warranty | 15 years |
| Power Warranty | 30 years linear to 88.4% |
Key Strengths
- ✓Lowest annual degradation in the catalog — 0.26%/yr
- ✓85% bifaciality — up to +10% yield on high-albedo sites
- ✓-0.26%/°C temperature coefficient — premium for hot climates (MENA, LatAm, Africa)
- ✓Symmetrical amorphous-silicon layers → extreme durability
- ✓Proven in field deployments (India Rajasthan agrivoltaic, 45°C ambient)
Technical Datasheet
JUST HJT Bifacial 680-740W — Datasheet PDF
JST-G12-M-66-MH-(680-720)W-HJT
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Open / Download →
Certifications
IEC 61215IEC 61730TÜV NORDCERoHSISO 9001ISO 14001ISO 45001CQCIntertekBIS (India)UL
Certificate documents available upon request (stamped digital / scanned original).
Best For
Desert, tropical, coastal, high-albedo, agrivoltaic projects
Trade Terms
- MOQ
- 1 × 40HQ container (≈560 pcs)
- Lead Time
- 30–40 days FOB Ningbo
- Get a Formal Quote
B2B solar pricing varies by order size, payment terms, destination, and market week. Submit an RFQ — Frank personally emails a formal Proforma Invoice within 24 hours.
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