How To Charge Solar Lights Without sun? 3 Awesome Tips

Ever wondered why with all the benefits of using solar lights, a lot of people haven’t made that investment. You hear people make comments like “What do I stand to gain by using solar lights and how will I get them charged in the absence of sunlight?” We have learned that there is a major misconception that only the sun can charge solar lights. Whilst the most effective way to charge your solar light is by using the sun, you should know that it is not the only way.

Like we have said in the preceding paragraph, you can get your solar light charged regardless of whether the sun is shining or not. It might also be of a shock to you that these other processes work even during winter, so you can rest assured that you will get to use your solar lights all year long. The purpose of this article is to teach you some things about solar lights and most importantly, how to charge solar lights without sun.

Table of Contents

Benefits Of Solar Lights

A lot of people do not know what they can gain from using solar lights. This is why we have taken the pain to write in detail the benefits which you can derive from them. To get an insight into what you stand to gain, you have to continue reading this article.

Go green

People are becoming conscious of the adverse effects the type of power we use can have on our planet. As we all know, using green energy is important to preserving the planet and this is where the use of solar lights comes in. By using solar light, you will not only be using clean energy, but you will also be saving the planet in the process.

Little or no maintenance

Solar lighting can be said to be maintenance-free as you can go for years without doing any maintenance or tweaking and they will still work fine. Although, it is advisable to do quarterly cleanups during the year to keep it working at the optimal level. On average, the lifespan of the batteries is seven years and you only have to get them changed after this period. Furthermore, apart from the solar panel’s glass that requires regular cleaning, all other parts of the solar lights can last for over 20 years without any routine maintenance.

Cost effective

Installation of solar lights can be a heavy investment at first as we all know. But when you calculate the amount of money that will be paid to your electricity provider over the coming years in comparison to the installation cost of solar lights, you will see that the solar light is a smart investment.


Using solar lights is safer than other types of lighting. This is because, with solar lights, you have little or no electrical wire hanging around. This ensures that you or the children around are protected from electric shock. Besides, since electric wires can sometimes spark and create fire, the lack of them makes your home safer from a fire.

Comes in different shapes and sizes

Solar panels are available in different designs, shapes, and sizes and you have a choice to choose the one which is more aesthetically pleasing to your eye.

How do solar lights work?

The components of any solar light are divided into four namely; the ba​​ttery, the solar panel, the electronic component, and the light fittings. The process of charging the batteries happens mostly during the day through the solar panels and these panels charge the batteries when the photons produced by the sun or any light hit it. Furthermore, the panel collects the rays which in turn create electricity that is stored by the battery. This process occurs through the day from sunrise to sunset and not necessarily when the sun is shining.

Although, batteries of 1200 mAh can power the lights successfully but note that bigger batteries produce more power and last longer. The Electronic part of the solar light known as light sensors or receptors detects if there is any light to be stored and when it is dark, it triggers the system to stop charging the batteries. The light is then turned on immediately the batteries stop charging. The light remains on till the battery is down or till the receptors detect light to charge the batteries.

How to charge solar lights without sun?

charge solar lights without sun

For a long time, people have held onto a belief that without solar lights can only get charged with the sun. This is not true because they are not designed to be charged with the sun alone. To understand the other ways to charge them, you need to read later paragraphs.

Using the light on a cloudy day

The thought of having your solar lights charged on a cloudy day might sound ridiculous. This is because when we put into consideration how solar lights should work, then the clouds will definitely be in the way of recharging them. But this is untrue and you must discard the myth that only direct sunlight can charge them. The first thing you need to know is that; the position of the sun is far away from the earth.  And that solar panels are built with that information in mind.

Solar light is built with receptors that can receive light, store it and convert it to energy regardless of how far away the light is. The receptors are quite sensitive that they can capture any ray of light detected by them no matter how small they are. This feature is what makes solar light chargeable on dark, cloudy days.  Rest assured that as long as the sun is still up in the sky, you will get your solar lights charged.

However, you must note that the solar light will not be as charged as when they come in contact with direct sunlight. This is because the receptors will only receive a fraction of the light they would have gotten on a sunny day. This, in turn, will reduce the power you will get back from your solar lights.

Using incandescent light

Incandescent light is the type of light with a wire filament that glows due to the extreme temperature from the filament. It might sound absurd that you can use this light to charge your solar light but it is true. It is even more interesting to know that this method even yields better results compared to using solar receptors during dark or cloudy days. We know what might be running through your mind already and we can say yes, it is true. It is true that solar panels need light before they can charge but as you might have guessed, it is not necessary for the light to be from the sun.

The design of the solar panel receptor is in such a way that it can detect even the slightest wavelength of light. The wavelengths of the incandescent light are like that of the sun and the only difference is that the sun’s wavelength is stronger. One major advantage of using incandescent light is; you can use it regardless of the time. You can use it during the daytime or nighttime. You can also use it in any weather be it sunny, rainy, windy, or snowy, you can charge your solar lights with it and you will still get the same results.

Using LED light

Another substitute for using incandescent light is using LED light. It provides almost the same wavelength as the sun and they are pretty effective.

Types of solar lights

The development of solar lights has reached a level where you are spoiled for choices on the type you should choose. This makes it easier for you to choose the one that best suits your need. Below are the different types of solar lights for outdoor purposes.

  • Solar Path Lights: These are small in size and they are not as bright compared to electric path lights. They are always placed on a stake and erected along pathways or walkways.
  • Ambient and Decorative Solar Lights: These are exquisitely designed solar lights. They are made in beautiful colours and shapes, whilst they are not really bright; they create a beautiful view when plenty of them are used together.
  • Solar-Powered SpotlightsThese are the brightest solar lights you can get. Their brightness can measure over 35-watt of normal incandescent bulbs. They are best used at driveways or doorsteps.


After taking out time to read this article, we hope you liked it and that you have learned a few things from it. Writing this article is important to us because there is a lot of misconceptions about solar lights and solar panels in general which we want to address. We are sure that your knowledge before and after reading this article isn’t the same. We would like to hear about all your opinions in the comment section and we will try our best to reply to any questions you might have. Finally, do not forget to share this article with others as we will like more people to be well informed about solar lights.

12 thoughts on “How To Charge Solar Lights Without sun? 3 Awesome Tips”

  1. Thanks great information not complicated in any way helps this elderly lady a lot.Was about to message you with such questions.LOVE my solar portable lights I charge then through the day outside then bring them in each night and have them placed around the floor of my unit.This enables me to walk round unit at night without having to turn on house lights and they turn off within a short period of time once I have stopped my wandering…..I think many more folk should give them some thought they are so versatile.

  2. I read your article and got some good idea about solar lights from your post. I think its a unique idea about charging solar light without sun power.

    Thanks for your amazing idea.

  3. how far we should keep the solar panel to get charged with a incandescent bulb and for how many hours to keep for charging.

  4. Really, it’s a cool idea. By reading this article I got some bright idea about the charging of solar light without the sun. Though it’s unbelievable but you did it. Thanks for your amazing tips.

  5. Thanks for sharing these great ideas with the readers. I would like to follow your tips to charge the solar lights in my garden and would share your tips with my friends too. Keep sharing such helpful ideas!

  6. I appreciate what you said about how solar lights convert the energy regardless of how far the light source is. I need to get panels installed on the south roof. I’ll have to get some panels and a battery installed with it.

  7. I have questions:
    1) I am a renter, can I place solar panels on the inside of a window and still charge a solar panel?
    2) how would you rate or compare a UV light bulb required for dessert reptiles? Could I get double the efforts? Because of the light requirements of some reptiles, could it be better than an incandescent bulb?
    3) how do I select the right size solar panel to keep refrigerator operating during a power outage?
    4) could I charge and hold solar energy in a car battery? If so, how long do you think the battery could hold a charge before dissipating before use (or is that even a thing?)
    5) is there a storage/shelf life to any solar charged panel or battery device?


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