How Do Solar Lights Work? Simple Explanation Of Different Types

Since the 20th century, solar-powered lights have been trendy. They’re cheap to produce and easy to use, and their energy efficiency makes them a viable alternative to traditional bulb-based lighting. In this article, I will tell you how solar lights work and why they’re so great for the environment.

What are solar lights?

Solar lights, also known as clean energy lights, are a lighting system that works by converting sunlight from sunlight into electricity, and then the controller of the lights will charge the battery. (this process will take 6-8 hours). After the battery is fully charged, the light will continuously glow for 8-12 hours (even on rainy days, without sunlight).

In fact, according to many reports, solar energy has been used by humans since the very beginning. It wasn’t until the early 20th century that modern lights began to be shaped and developed to this day. Early lamps often use monocrystalline silicon panels or polycrystalline silicon panels… while modern lamps use thinner panels. The types of solar lights that are commonly used today include:

  • Solar wall lights.
  • Solar street lights.
  • Solar garden lights.
  • Solar LED headlights.

Structure of solar lights

Solar lights today have many different capacities, designs and sizes, so many people will wonder: What is the structure of solar lights? Does the lamp have different methods, the structure is different?

It can be affirmed that, although there are many different models and capacities, all types of solar lights today have a standard structure including the following main parts:

Solar panels: Solar batteries are the most essential and indispensable part for all solar lights. Solar panels consist of cells. It has the effect of absorbing sunlight and converting that light into electricity so that the lamp can be used for lighting. This battery can be attached to the lamp (the back of the lamp or the top of the lamp) or is a removable panel, which can be easily moved and changed to the location with the most sunlight.

Control: The controller’s main function is to cut off the current when the battery/battery is full. Accumulated energy from the charging plate will be transferred to the charger/battery, when it is full, the controller will cut off the current, avoiding the overload that can cause the battery/battery to explode. In addition, this unit also has the function of automatically turning on and off based on the change between light and dark from a built-in optical sensor.

Solar LED bulbs: Normally, products will use LED lights because the advantages of LED lights are good lighting ability, no electricity costs, no need to connect electricity, lamp life up to 50000 hours. Depending on the type of light, there will be different capacities and number of LED bulbs, there are 16 bulbs, 32 bulbs …

Lamp body: Most solar lamp body is made from PC material, high-grade ABS plastic, or aluminum, tempered glass… In addition, the lamp body can be made of monolithic copper or assembled from many different panels.

Battery (or battery): Each lamp is equipped with an ultra-durable, high-capacity lithium battery or energy tank to store electricity to power the lamp.

Switch: Right behind the light, we often see a small button, used to disconnect the power when the light is not needed or left in a dark box.

How Do Solar Lights Work?

Solar lights use 100% energy from the sun, completely free, automatically illuminate at night and automatically turn off during the day. The working principle of solar lights is quite simple:

During the day: The light will automatically turn off, the solar panel will absorb sunlight and accumulate in the charger or battery, when storing enough energy, it will automatically turn off (About 6 hours).

At night: The light will automatically illuminate thanks to the previously charged solar energy.

Automatic motion sensor: In addition to the light sensor, the light also can sense when people and objects move close and automatically turn on.

How Do Solar Lights Work

How to Choose the Best Solar Light

When shopping for solar lighting, there are a few different factors you need to consider. When buying a solar panel, you want to look for a unit that’s cheap, durable, and easy to set up. You’ll also want to consider the type of solar panel that you’re considering.

Typically, the more influential the solar panel, the brighter the light it can produce. You want to avoid anything extremely expensive or bulky, and don’t buy anything too small either.


Solar lights are a great alternative to traditional light sources and last for a long time. I think everyone should invest some in their spare time to create a bright and energetic area in the garden, as well as a pleasant and relaxing interior at home.

View more:

What types of solar lights are there?

What is photovoltaic (PV)?

What are solar lights?

Buying Guide:

Best Outdoor Solar Lights

Best Solar Christmas Lights

Best Solar String Lights Outdoor

Best Solar Lights For Trees

Best Solar Deck Lights

Best Solar Flood Lights

Best Solar Driveway Lights

Shaun M Schacher
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