During daylight, the solar panel mounted on (or near) the light pole converts sunlight into electricity. 
Specifications
Specification / Feature
Typical Range / Value / Description
LED Power / Wattage
From about 10 W (small walkway lights) up to ~150 W or more (for larger street / road lights) depending on coverage needs.
Light Output (Lumens)
Roughly 1,000 – 15,000 lm depending on wattage / size of the light — enough for street illumination or pathway lighting.
Solar Panel
Monocrystalline or polycrystalline solar PV panel; size depends on wattage — e.g. 50 W, 80 W, 100 W or more for larger lights.
Battery
Rechargeable battery (often lithium‑ion, LiFePO₄, or sealed/gel lead‑acid depending on design); capacity varies widely (e.g. 20 Ah to 100 Ah + depending on light wattage and autonomy requirements).
Autonomy / Backup Runtime
A good solar street light can often keep lighting through the night, and many designs aim for ~10–12 hours of night lighting on full charge; some “smart” models dim or reduce output to extend to several nights (2–5 days) if no sunlight.
Color Temperature / Light Quality
Many deliver a neutral to cool white light (often around 5000 K–6500 K), sometimes adjustable depending on design.
Controller / Smart Features
Built‑in controller (often PWM or MPPT), dusk‑to‑dawn auto turning, overcharge/discharge protection, and sometimes motion sensor / dimming / light‑sensor + timer for efficiency.
Durability & Weather Resistance
Weather‑proof / water‑resistant housing, typically rated IP65–IP66 (dust and water protection) for outdoor use.
Installation Height / Coverage
Often mounted on poles (e.g. 4–8 m or higher) depending on the area — street, pathway, parking lot, compound, etc.
