9W solar street lights are a popular entry-level choice for targeted outdoor lighting. They are particularly effective for areas requiring reliable, low-intensity illumination without the need for high-voltage wiring.
Technical Specifications (Standard 9W Setup)
A typical 9W system is designed to balance energy collection with consistent night-long performance.
| Component | Common Specification |
|---|---|
| Luminous Output | ~900 to 1,100 Lumens |
| Solar Panel | 20W to 40W (Polycrystalline or Monocrystalline) |
| Battery | 12.8V 10Ah to 12Ah (typically LiFePO4 for longer life) |
| Charging Time | 6–8 hours of bright sunlight |
| Backup Time | 12–18 hours (Dusk to Dawn) |
| IP Rating | IP65 or IP66 (Waterproof and Dustproof) |
| Installation Height | Recommended 3 to 5 meters |
Configuration Types
There are three main ways these lights are manufactured, each with its own benefits:
* All-in-One (Integrated): The panel, battery, and LED are all in a single compact housing. It is the easiest to install (usually just mounting it to a pole or wall) and has a sleek look.
* Semi-Integrated: The battery and LED are in one unit, but the solar panel is separate. This allows you to tilt the panel independently for maximum sun exposure while keeping the light pointed where you need it.
* Split Type: Each component is separate. This is less common for 9W models but useful if you need to place a large battery in a protected box or if the panel needs to be far from the light itself.
Best Applications
Because a 9W LED is equivalent to roughly a 60W–75W incandescent bulb in terms of visible light, it is ideal for:
* Residential Use: Driveways, garden paths, and small backyards.
* Institutions: School perimeters, small playgrounds, and hospital walkways.
* Rural Connectivity: Village streets and agricultural farm gates where grid power is unavailable.
* Security: High-traffic areas requiring constant "Dusk to Dawn" monitoring.
Current Market Pricing
In India, pricing varies significantly based on the quality of the LED chips (e.g., Osram or Phillips) and battery capacity:
* Basic/Unbranded: ₹1,800 – ₹3,500 per unit.
* Standard Commercial (Kenbrook, Autigo, etc.): ₹4,500 – ₹8,500.
* MNRE Approved/Premium (Amrut Energy, etc.): ₹10,000 – ₹16,000 (often includes 5-year warranties and high-efficiency MPPT controllers.
Technical Specifications (Standard 9W Setup)
A typical 9W system is designed to balance energy collection with consistent night-long performance.
| Component | Common Specification |
|---|---|
| Luminous Output | ~900 to 1,100 Lumens |
| Solar Panel | 20W to 40W (Polycrystalline or Monocrystalline) |
| Battery | 12.8V 10Ah to 12Ah (typically LiFePO4 for longer life) |
| Charging Time | 6–8 hours of bright sunlight |
| Backup Time | 12–18 hours (Dusk to Dawn) |
| IP Rating | IP65 or IP66 (Waterproof and Dustproof) |
| Installation Height | Recommended 3 to 5 meters |
Configuration Types
There are three main ways these lights are manufactured, each with its own benefits:
* All-in-One (Integrated): The panel, battery, and LED are all in a single compact housing. It is the easiest to install (usually just mounting it to a pole or wall) and has a sleek look.
* Semi-Integrated: The battery and LED are in one unit, but the solar panel is separate. This allows you to tilt the panel independently for maximum sun exposure while keeping the light pointed where you need it.
* Split Type: Each component is separate. This is less common for 9W models but useful if you need to place a large battery in a protected box or if the panel needs to be far from the light itself.
Best Applications
Because a 9W LED is equivalent to roughly a 60W–75W incandescent bulb in terms of visible light, it is ideal for:
* Residential Use: Driveways, garden paths, and small backyards.
* Institutions: School perimeters, small playgrounds, and hospital walkways.
* Rural Connectivity: Village streets and agricultural farm gates where grid power is unavailable.
* Security: High-traffic areas requiring constant "Dusk to Dawn" monitoring.
Current Market Pricing
In India, pricing varies significantly based on the quality of the LED chips (e.g., Osram or Phillips) and battery capacity:
* Basic/Unbranded: ₹1,800 – ₹3,500 per unit.
* Standard Commercial (Kenbrook, Autigo, etc.): ₹4,500 – ₹8,500.
* MNRE Approved/Premium (Amrut Energy, etc.): ₹10,000 – ₹16,000 (often includes 5-year warranties and high-efficiency MPPT controllers.
