LiAzma INDIA (OPC) Private Limited
Welcome to LiAzma INDIA (OPC) Private Limited

15-20W SOLAR STREET LIGHT SYSTEMS

📄 Technical Data Sheet

Solar Lighting System – 15W to 20W with 75Wp Solar Panel & 12.8V 18–24Ah LiFePOâ‚„ Battery

Model: SLS-15/20W-SP75-LFP18/24 | Application: Solar Street Light / Rural Road Lighting / Garden & Campus Lighting


Product Specification

🔆 Solar Panel

  • Type: Polycrystalline or Monocrystalline Silicon

  • Rated Power Output: 75W ±3%

  • Voltage at Max Power (Vmp): 17.5V – 18.5V

  • Current at Max Power (Imp): 4.1A – 4.3A

  • Open Circuit Voltage (Voc): 21.5V – 22.5V

  • Short Circuit Current (Isc): 4.5A – 4.8A

  • Efficiency: ≥17%

  • Front Glass: 3.2mm tempered low-iron glass

  • Frame: Anodized aluminum alloy

  • Junction Box: IP65, with bypass diodes

  • Cable: UV-resistant, 1m–2m, 2.5 sq.mm copper

  • Lifespan: 25 years

  • Certifications: BIS / IEC 61215 / IEC 61730 / CE / ISO 9001


💡 LED Luminaire

  • Rated Power: 15W to 20W

  • Luminous Output:

    • 15W: 1600 – 1800 lumens

    • 20W: 2000 – 2400 lumens

  • LED Type: High-efficiency SMD (≥120 lm/W)

  • Color Temperature: 3000K to 6500K (Neutral or Cool White)

  • Light Distribution: 120° – 150°

  • Control Mode:

    • Auto Dusk-to-Dawn

    • Optional timer or PIR motion sensor

  • Housing Material: Die-cast aluminum / powder-coated PC

  • Ingress Protection: IP65 or IP66

  • Mounting: Suitable for pole or wall

  • Working Life: >50,000 hours

  • Protection: Reverse polarity, surge, over-temp


🔋 Battery – Lithium Iron Phosphate (LiFePOâ‚„)

  • Type: LiFePOâ‚„ (Lithium Iron Phosphate)

  • Nominal Voltage: 12.8V

  • Capacity Options:

    • 18Ah (230 Wh) – Suitable for 15W, 10+ hours backup

    • 24Ah (307 Wh) – Suitable for 20W, 12+ hours backup

  • Cycle Life: >2000 cycles at 80% DOD

  • BMS Protections:

    • Overcharge

    • Deep discharge

    • Short circuit

    • Thermal protection

  • Enclosure: Powder-coated MS/ABS box, IP54 or IP65

  • Certifications: IEC 62133 / UN38.3 / BIS / RoHS


⚙️ Solar Charge Controller

  • Type: PWM (standard) or MPPT (recommended)

  • System Voltage: 12V DC

  • Rated Current: 10A

  • Functionality:

    • Dusk-to-dawn automatic switching

    • Intelligent battery charging

    • LED status indicators or LCD display

  • Protections:

    • Reverse polarity

    • Battery over/under voltage

    • Output short circuit

    • Load overcurrent


🛠️ Mechanical & Mounting

  • Recommended Pole Height: 4m – 6m GI/MS pole

  • Luminaire Mounting: Adjustable tilt bracket

  • Panel Mounting: Fixed tilt (30°–45°, based on latitude)

  • Cabling: UV resistant, 2.5 sq.mm copper wires

  • Total System Weight: 18 – 28 kg (depending on battery)


🌦️ Environmental Specifications

  • Operating Temperature: –10°C to +60°C

  • Storage Temperature: –20°C to +70°C

  • Relative Humidity: 0% – 95% non-condensing

  • Protection Rating: IP65 for outdoor components

  • Installation: Open outdoor, rooftop, roadside, or campus


📈 System Performance

Load Power Battery (Ah) Backup Time Daily Load Solar Gen (Avg.)
15W 18Ah ~12 hrs ~180 Wh ~300–340 Wh
20W 24Ah ~12–13 hrs ~240 Wh ~300–340 Wh

 

  • Battery Charging Time: 5–6 hours with 75Wp panel under 5 peak sun hours

  • System Efficiency: >85% end-to-end


✅ Optional Features

  • PIR Motion Sensor with dimming control

  • Timer-based auto-off

  • GSM/IoT-based remote monitoring (optional)

  • Mobile Charging USB Port (5V)

  • All-in-One Integrated Housing Design


📋 Warranty & Certifications

  • Solar Panel: 10–25 years (performance)

  • Battery: 3–5 years (depending on make)

  • LED Luminaire: 2–5 years

  • Charge Controller: 1–2 years

  • Certifications:

    • BIS (IS 16101, IS 13314)

    • IEC 61215 / 61730 (Panel)

    • IEC 62133 / UN38.3 (Battery)

    • CE / RoHS / ISO 9001