Regarding the energy saving of solar lamps (especially solar LED street lamps), the following aspects can be considered and optimized.

1. Consider using LED lamp groups with higher light efficiency so that the current of the lamp group is smaller and the time is longer.

2. You can also consider PWM control of the lamp group to appropriately reduce the brightness according to the requirements so that the current is smaller and the time is longer.

3. Increase the solar panel, increase the battery, adjust the battery angle, and use a more efficient photovoltaic control panel.

‌Solar LED lamps achieve energy saving and low power consumption in the following ways:

‌Energy conversion of solar panels: Solar panels convert light energy into electrical energy through the photovoltaic effect. When the solar panel is exposed to light, the light energy is converted into electrical energy and stored in the battery.

‌High-efficiency light emission of LED lamp heads: LED lamp heads have the characteristics of low voltage, energy saving and long life. The spectrum of LED is almost entirely concentrated in the visible light band, with high light efficiency, which is more energy-saving than traditional lamps such as incandescent lamps and fluorescent lamps.

‌Management of intelligent controller: The intelligent controller is responsible for managing the charging and discharging process of the battery. During the day, the electricity generated by the solar panel is stored in the battery through the controller; at night, when the ambient illumination drops to a certain level, the controller will automatically start the LED lamp head for lighting, and automatically shut down when the battery power is low.

‌Light control and time control function‌: The controller can automatically adjust the switch of the lamp according to the ambient light intensity to achieve light control and time control functions. This not only reduces human intervention, but also effectively saves electricity.

‌Battery energy storage and protection‌: The battery stores electricity during the day and releases electricity to supply power to the LED lamp head at night. The charge and discharge controller also has functions such as overcharge protection, over-discharge protection and reverse connection protection to ensure the safety and service life of the battery.