Jinko Solar N-Type Bifacial 635 W (78HL4-BDV-F10)
Jinko Solar N-Type Bifacial 635 W (78HL4-BDV-F10)
This is a full-size dual-glass bifacial module built on N-type cells, made for commercial rooftops, ground-mounted farms and utility fields where every square metre has to earn its place. The clear rear glass turns light reflected off the ground or the roof into extra output, while glass on both faces, an anodised aluminium frame and a sealed junction box carry it through sand, salt air and hard weather. It is covered for 12 years as a product and 30 years on performance.
Key Features
- Power from both faces — The clear rear glass converts light bouncing off the ground into extra output, rated at up to 80% of the front face.
- Glass on both sides — Two 2 mm sheets of glass replace the plastic backsheet, with an anti-reflection coating on the front to let more light in.
- Built for wind and heavy loads — Certified to hold 5400 Pa of load on the front face and 2400 Pa on the back.
- Output that does not quietly fade — N-type cells come with an anti-PID guarantee and hold up better in weak morning and evening light.
Specifications
Electrical
| Maximum Power - Pmax | 635 W |
| Maximum Power Voltage - Vmp | 47.86 V |
| Maximum Power Current - Imp | 13.27 A |
| Short-circuit Current - Isc | 13.92 A |
| Open-circuit Voltage - Voc | 57.21 V |
| Module Efficiency STC | 22.72 % |
| Power Tolerance | 0 ~ + 3 % |
Mechanical
| Cell Type | N- type Mono-crystalline |
| Number of Cells | 156 (78×2) |
| Dimensions | 2465×1134×30 mm |
| Weight | 34.0 kg |
| Front Glass | 2.0 mm, Anti-reflection Coating |
| Back Glass | 2.0 mm, Heat Strengthened Glass |
| Frame | Anodized Aluminium Alloy |
| Junction Box | IP68 Rated |
| Connector Type | JK03M/MC4/Others |
| Pallet Dimensions | 2525×1140×1251mm |
| Packing Detail | 36 pcs/pallets, 72 pcs/stack, |
| Maximum Power Current Imp | 14.59 |
| Operating Temperature | -40 °C ~ +70 °C* |
| Maximum Series Fuse Rating | 30 A |
| Bifaciality Coefficent | Voc:98±5%, qplsc: 80±5 %, Pmax: 80±5% |
Environmental
| Temperature Coefficients of Pmax | -0.29 %/°C |
| Temperature Coefficients of Voc | -0.25 %/°C |
| Temperature Coefficients of Isc | 0.045 %/°C |
| Protection Class | Class II |
| IEC Fire Type | Class C |
Certifications: IEC, TUV, CE
FAQs
How much extra energy does the bifacial side really add?
The rear face is credited at 80% (±5%) of the front. Measured under the bifacial conditions on the datasheet (135 W/m² reaching the back), the module tests about 10% above its front-only rating; your real gain depends on how reflective the surface below is and how high the panel sits.
What warranty comes with the panel?
12 years on the product itself and 30 years of linear performance: no more than 1% loss in the first year, and at least 87.4% of the original rating still guaranteed in year 30.
What size and weight should I plan for on the mounting?
Each module is 2465 × 1134 × 30 mm and weighs 34 kg in an anodised aluminium frame, works from -40 °C to +70 °C and up to a 1500 VDC system voltage. Panels ship 36 to a pallet.