A standalone solar photovoltaic street lighting system (SLS) is an outdoor lighting unit used for illuminating a street or an open area. Electricity generated by the PV module charges the battery during the day time which powers the luminaire from dusk to dawn. The system lights at dusk and switches off at dawn automatically
Model | LED Lamp Capacity | Solar Module Capacity | Battery Capacity | Battery Compatibility | Operation | Load Operation Theory |
7W LED-I | LED Lamp Capacity | 40 Wp | 40 Wp | Lead acid Tubular Flooded | dusk to dawn at full Brightness | Constant voltage and constant current |
7W LED-II | 30 Wp | 20 Ah | Lead acid Tubular Flooded | Lead acid Tubular Flooded | ||
7W LED-III | 40 Wp | 160 Ah | Lithium Ferro phosphate Battery | dusk to dawn at full Brightness | ||
7W LED-IV | 40 Wp | 120 Ah | Lithium Ferro phosphate Battery | Lithium Ferro phosphate Battery | ||
12 W LED | 12 W LED | 50 Wp | 40 Ah | Lead acid Tubular Flooded | dusk to dawn at full Brightness | |
18 W LED | 18 Watt | 75 Wp | 75 Ah | Lead acid Tubular Flooded or VRLA/GEL Type | Lead acid Tubular Flooded or VRLA/GEL Type | |
18 W LED | 24 Watt | 150 Wp | 150 Ah | Lead acid Tubular Flooded or VRLA/GEL Type | dusk to dawn at full Brightness |
Input | ||
Rated working voltage | Rated working current (±30 mA) | |
12V DC | 600 mA | |
600 mA | ||
600 mA | ||
600 mA | ||
1000 mA | ||
1500 mA | ||
2000 mA |
Converter type | Rated working output voltage | Rated working output current | Luminary converter efficiency | Charging current | Luminary converter frequency | Solar charge controller efficiency | Battery depth of discharge |
Buck converter | 9.2V ± 0.2 V | 680 mA | >85% | 6A | 100KHz | <10mA | <75%DOD |
680 mA | |||||||
680 mA | |||||||
680 mA | |||||||
1180 mA | |||||||
1760 mA | |||||||
2350 mA | 10A |
Display | ||
Battery Low Warning | Battery Low Warning | Battery Low Warning |
Red LED | Green LED | Green LED |