It is achieved by special coating or surface treatment. This treatment may be to increase the weatherability, pollution resistance or aesthetics of the photovoltaic panel. Gray solar roof tiles generally have higher reflectivity and can perform better in thermal management, reducing the operating temperature of photovoltaic modules.
 | T MAX O PHYSICAL PARAMETERS |
| Product model | JS78DG-13e 1/2 |
| Dimensions | 1260*480mm |
| Weight | 15.5kg |
| Glass (material/thickness) | Tempered glass/3.2mm+3.2mm |
| Cell | 182*91mm（2*12） |
| Junction box | ≥IP67 |
| Cable type | 900mm / 4mm² |
| Plug connector | MC4 |
| Life span | >30years |
| ELECTRICAL PARAMETERS(STC) |
| Solar cells | Monocrystalline |
| Power output（Pmax ） | 78W |
| Module efficiency（%） | 16.4% |
| Voltage at Pmax（V mpp） | 13.5V |
| Current at Pmax（I mpp） | 5.78A |
| Open-circuit current（Voc） | 16.2V |
| Short-circuit current（Isc） | 6.07A |
 | T MAX L PHYSICAL PARAMETERS |
| Color | Black |
| Dimensions | 1340*420mm |
| Weight | 6.5kg |
| Glass (material/thickness) | Tempered glass/3.2mm+3.2mm |
| Cell | 166*83mm（2*13） |
| Junction box | ≥IP67 |
| Cable type | 500mm / 4mm² |
| Plug connector | MC4 |
| Life span | >30years |
| ELECTRICAL PARAMETERS(STC) |
| Solar cells | Monocrystalline |
| Power output（Pmax ） | 66W |
| Module efficiency（%） | 16 % |
| Voltage at Pmax（V mpp） | 14.3V |
| Current at Pmax（I mpp） | 4.62A |
| Open-circuit current（Voc） | 17.3V |
| Short-circuit current（Isc） | 4.A |
 | T MAX A PHYSICAL PARAMETERS |
| Product model | JS78DG-12e 1/2 |
| Dimensions | 1200*430mm |
| Weight | 9.5kg |
| Glass (material/thickness) | Tempered glass/3.2mm+3.2mm |
| Cell | 182*91mm（2*12） |
| Junction box | ≥IP67 |
| Cable type | 5900mm / 4mm² |
| Plug connector | MC4 |
| Life span | >30years |
| ELECTRICAL PARAMETERS(STC) |
| Solar cells | Monocrystalline |
| Power output（Pmax ） | 78W |
| Module efficiency（%） | 15.1% |
| Voltage at Pmax（V mpp） | 13.5V |
| Current at Pmax（I mpp） | 5.78A |
| Open-circuit current（Voc） | 16.2V |
| Short-circuit current（Isc） | 6.07A |
Although solar roof tiles of different colors may have certain advantages and have an impact in practical applications. When choosing solar roof tiles, it is more important to consider their overall quality, efficiency, reliability and cost to meet specific project needs.
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