JA Solar DeepBlue 4.0X 615W (JAM78D40-615)
Rs 24,600 – Rs 27,370
Rs 40.0 per watt
Price updated: 27 August 2026
Full specifications
| Brand | JA Solar |
| General Specifications | |
| Model number | JAM78D40-615 |
| Power | 615 W |
| Cell technology | N-Type TOPCon |
| Solar panel type | Bi Facial |
| Module efficiency | 22.0% |
| Product warranty | 12 Years |
| Performance warranty | 30 Years |
| Electrical Specifications | |
| Max. system voltage | 1500 VDC |
| Max. series fuse rating | 30 A |
| Open circuit voltage (Voc) | 55.20 V |
| Voltage at max. power (Vmp) | 46.07 V |
| Short circuit current (Isc) | 14.23 A |
| Current at max. power (Imp) | 13.35 A |
| Output cable | 4 mm² |
| Mechanical Parameters | |
| Glass type | Dual Glass |
| Operating Parameters | |
| Operational temperature range | -40°C ~ +85°C |
Note: JA Solar DeepBlue 4.0X, N-Type TOPCon. 615 W at 22.0% module efficiency. Bifacial dual-glass with 80% bifaciality - the back face adds that share of the front output when it has something bright to reflect off, so it is worth real money on a white roof or light gravel and close to nothing on a dark one. 12-year product warranty, 30-year linear power warranty. Price shown is a market range built from Pakistani per-watt rates, not a quote for this exact model: Rs 40 to Rs 44.5 per watt, which at 615 W works out at roughly Rs 24,600 to Rs 27,370. The low end is the wholesale rate published on 11 August 2026 and the high end a retail rate list from 24 August 2026. Panel rates in Pakistan move with the dollar and are quoted per watt, so treat this as a band to negotiate inside rather than a fixed figure, and always confirm the day's rate with the dealer.