How to Charge Solar Lights Without Sun

How to charge solar lights without sun, you can charge the solar lights with indirect sunlight as artificial incandescent bulbs, LED lights, and USB ports. The best way to charge solar lights is with direct sunlight. The solar panels convert the sunlight into electricity, giving power to the solar lights all night. Solar power is an excellent source of renewable energy. It reduces your carbon footprint and electricity bills. However, the sun is not the only way to charge solar lights. You don’t have access to direct sunlight on a rainy day or during the winter. In addition, most people also want to use solar lights indoors. However, you can still charge your solar lights in other ways.

charge solar lights without sun

Charging with Indirect Sunlight

Artificial Incandescent Bulbs

Incandescent light has characteristics that emit light waves similar to sunlight. So you can charge solar lights using artificial incandescent bulbs. Incandescent light bulbs are about 80% as efficient as sunlight. While it is not as efficient as sunlight, it can still provide enough power for your solar lights. You just need to place the solar lights about 20 inches away from the incandescent bulbs for a few hours. Most light bulbs produce between 40-100 watts of light. The bigger the wattage, the faster your solar lights will charge.

LED Lights

You can charge solar lights with LED bulbs. LED lights emit visible light, long infrared waves, and ultraviolet waves. These waves are the same as those produced by the sun. LED lights can charge solar lights when you don’t have access to indoor lighting. While using LED lights, you need to charge the solar panel for more than 10 to 12 hours.

USB Ports

charge solar lights without sun usb ports

Many solar lights are coming up with USB ports, so you will not have to rely on sunlight or artificial lights. You can directly charge the lights using any power bank or your laptop.

Effective Ways To Charge Solar Lights Without Sun

Clean Solar Panels

Solar panels can collect dust and grime as time passes. They gather on the panels, blocking the sunlight from reaching the solar panel. In addition, the dirt will eventually cause rusting in the metal components of your solar panel. To help it charge more efficiently without sunlight, you require regular clean the solar panel.

Adjust the Angle of the Solar Panels

As we all know, the sun rises in the east and sets in the west, which is still the case even without the sun. So you can adjust the angle of the solar panel so that it directly faces the sun. This maximizes charging efficiency. To do this, you’ll have to adjust the position of the solar panels throughout the day. This is especially important in winter or rainy when there’s less sunlight available throughout the day.

Use Mirrors to Reflect Sunlight

You can angle mirrors to reflect more sunlight onto your solar panels. This is an efficient way to get the most out of the sun without sun. It can increase the amount of diffuse sunlight our solar lights receive. However, you need to look at where the sun is in the sky and keep repositioning the mirror throughout the day.

Do a Long Charge

Typically it takes 6-10 hours of direct sunlight fully charge the solar lights. However, you can charge the solar lights for a longer time on cloudy days, winter, or other low sunlight. When charging the solar lights during the day, turning off the solar lights will make the charging more efficient. In addition, turn off the solar lights and ensure without the lights come on at night to ensure maximum capacity charge.


There are many ways to charge solar lights without direct sunlight. You can charge them indoors or outdoors. Solar lights can get a charge even when there’s no presence of sunlight. It can be done with the help of incandescent light bulbs, LED lights, etc.

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