Description
The LONGi Hi-MO 9 LR8-66HYD-640M is a 640W bifacial module from LONGi's Hi-MO 9 range, using back-contact (BC) cell technology that moves all the metal contacts to the rear of the cell. With no front grid lines to shade the cell, it delivers very high efficiency from the standard 2382 × 1134mm format, ideal for utility, C&I and large residential arrays.
- 640W output with approximately 23.7% module efficiency
- Back-contact (BC) cells – no front busbars, more light reaches the cell
- Excellent temperature coefficient of -0.26%/°C for better yield in South African heat
- Bifacial dual glass (2.0 + 2.0mm heat-strengthened), bifaciality 75 ±5%
- Low degradation: <1% in year one and 0.35% per year thereafter
- Rated for 5400Pa front / 2400Pa rear static load and 25mm hail
- 12-year product and 30-year linear power warranty
Specifications (LR8-66HYD-640M)
| Maximum power (Pmax) |
640W |
| Open-circuit voltage (Voc) |
49.52V |
| Short-circuit current (Isc) |
16.38A |
| Voltage at max power (Vmp) |
40.78V |
| Current at max power (Imp) |
15.69A |
| Module efficiency |
≈23.7% |
| Power tolerance |
0 ~ +3% |
| Cells |
132 (6×22), back-contact |
| Bifaciality |
75 ±5% |
| Temperature coefficient of Pmax |
-0.260%/°C |
| Maximum system voltage |
DC 1500V (IEC/UL) |
| Maximum series fuse rating |
35A |
| Operating temperature |
-40°C to +85°C |
| Dimensions |
2382 × 1134 × 30mm |
| Weight |
33.5kg |
| Glass / frame |
Dual glass 2.0 + 2.0mm / anodised aluminium |
| Junction box |
IP68, three diodes |
| Warranty |
12 years product / 30 years linear power |
Official Datasheet: LONGi Hi-MO 9 LR8-66HYD 635–670M Datasheet
Available on backorder – please contact us for lead time.
This product must be installed by a qualified electrician. All installations must adhere to local wiring regulations and standards.
