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1. Main components
Solar panels: usually made of monocrystalline silicon or polycrystalline silicon, convert solar energy into electrical energy.
Batteries: commonly used lithium batteries or colloidal batteries, store electrical energy for use at night or on cloudy days.
LED light source: high efficiency and energy saving, long life (about 50,000 hours or more), adjustable brightness.
Controller: intelligent control of charging and discharging, with functions such as light control, time control, and human body sensing.
Light body structure: waterproof and dustproof design (common IP65 and above), mostly made of aluminum alloy or engineering plastics.
2. Working principle
During the day: solar panels absorb sunlight and convert it into electrical energy, which is stored in the battery through the controller.
At night: the controller automatically turns on the LED light according to the light intensity and uses the stored electrical energy for power supply.
Intelligent control: some models support human body sensing (automatic lighting when people come), timed shutdown or brightness adjustment.
3. Core advantages
Energy saving and environmental protection: completely dependent on solar energy, zero electricity bill, no carbon emissions.
Easy installation: no wiring required, independent power supply, suitable for areas without power grid.
Low maintenance: Durable, only need to clean the solar panel daily.
High cost performance: Long-term use cost is lower than traditional circuit lamps.
4. Common application scenarios
Home/garden lighting: garden lights, lawn lights, wall lights.
Public facilities: street lights, square lights, park landscape lights.
Emergency lighting: remote areas, parking lots, billboard lighting.
Commercial use: decorative lighting for hotels and resorts.
5. Key points for purchase
Battery capacity: Select according to the duration of night lighting (e.g. 8 hours of battery life requires more than 20Ah).
Solar panel power: higher power is recommended for areas with insufficient light (e.g. 10W-30W).
Protection level: IP65 or above is required for outdoor use, resistant to wind and rain.
Intelligent functions: such as remote control dimming, microwave sensing, etc., can be selected as needed.
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6. Maintenance precautions
- Clean the dust and snow on the surface of the solar panel regularly.
- Avoid long-term exposure of lamps to extreme temperatures.
- Check the battery performance every 2-3 years and replace if necessary.
7. Common types in the market
Split type: The solar panel is separated from the lamp head, suitable for high-power lighting.
