New energy in Gu Sen, Gansu: the principle of solar street lamps

Solar street lamp is a kind of lighting equipment that uses solar energy to generate electricity. Its principle is to convert solar energy into electric energy through solar panels, then store it in batteries, and finally illuminate it through LED lamps.

Solar panels are the core components of solar street lamps, which are composed of multiple solar cells. When the sun shines on the solar panel, the solar cells in the solar panel will convert light energy into electric energy. These solar cells are usually made of silicon, which has photoelectric effect, that is, when light shines on the solar cells, electrons will be excited and flow, thus generating current.

After solar panels convert solar energy into electric energy, the electric energy needs to be stored for night use. To achieve this, solar street lamps are usually equipped with a battery pack for storing electric energy. These batteries are usually lithium batteries or lead-acid batteries with high energy density and long life.

When solar panels generate electric energy and store it in the battery pack, solar street lamps can use the stored electric energy for night lighting. Solar street lamps usually use LED lamps as light sources, because LED lamps have the advantages of high efficiency, energy saving and long service life. By controlling the battery pack to provide stored electric energy to the LED lamp, the solar street lamp can provide continuous and stable lighting effect.

In addition, solar street lamps are usually equipped with light-controlled switches and time controllers. The light switch can automatically adjust the brightness of solar street lamps according to the light intensity. When the light is bright enough, the solar street lamp will automatically turn off to save energy. The time controller can control the switch of the solar street lamp according to the set schedule, so as to ensure that the solar street lamp is automatically turned on when lighting is needed at night.

In short, solar street lamps use solar energy to generate electricity, convert solar energy into electric energy through solar panels, store electric energy through battery packs, and finally illuminate through LED lamps. This lighting method has the advantages of environmental protection, energy saving and high reliability, and is a sustainable lighting solution.