Why Your Solar Lights Come on During the Day?

Do you see your solar lights come on in the daytime and off at night? Once you notice this happens, the first thing you may do is searching the Internet for possible solutions, and you may seen many other people having the same issue. Or check with the lighting manufacturer customer services for possible answers and solutions. 

Solar lights

Now, you might be asking “why do my solar lights come on during the day.” Here with the possible reasons and solutions for this question. And you may also check another article about "Why Do Solar String Lights Stop Working at night?"

  • 1). The solar panel is dirty and faulty.
  • 2). The lights not installed properly.
  • 3). The override switch is turned on by mistake.

1). The solar panel is dirty and faulty

Light is likely not to reach the light sensor if it’s dirty. It might be mistakenly sensing the dirt as nighttime. You often encounter this if you haven’t cleaned your solar lights for a long time. Another cause is that heavy rainstorms picked up much dirt and smudged your light sensor.

Debris and leaves that have fallen could have blocked your sensors. If you place your solar lights near bushes or trees with wide leaves, this is one of the things you should check out.

Cleaning your solar lights whenever you have the chance is the solution. Ideally, you should clean them once a month. You simply need a water hose and let the water remove all the accumulated dust and dirt.

You can also use a mild detergent or soapy water and a sponge to scrub your lights clean and rinse them using your hose. By doing this, your lights can absorb much sunlight.

There is also a high probability that your sensor is malfunctioning. There might be a manufacturing defect if you’ve only had your solar lights for a short time. You can check the warranty that comes with them.

If it’s past the expiration of the warranty, you can look at the wiring inside because they might have been damaged and resulted in a short circuit. Preparing special tools in advance, opening your solar lights, handled by professionals is recommended.

2). The lights not installed properly

When you put up your solar lights, you might have placed it in an area where there isn’t enough sunlight. As a result, your sensors automatically turn on the lights. It could have been installed where a part of a large tree covers it or where there are shadows.

You should keep in mind that before light sensors can be used, they need much sunlight. Thus, placing them under the shade is a not a good idea because they will not turn off.

Solar yard lights should ideally be exposed to the sun for at least 6 hours straight. This charging time is enough to fully charge the batteries and make them last throughout the evening.

3). The override switch is turned on by mistake

Some models of solar lights are designed with an override switch. It can supersede your light sensor and turns your solar lights on regardless if it’s daytime or nighttime. Consider checking if you made a mistake of turning it on. This override switch do not apply to Solar Lights manufactured by ZHONGXIN Lighting


There are many causes why your solar lights come on during the daytime. As you noticed, all these issues are easy to resolve, so much money or time is not needed. Some of the things you can do to improve your solar lights are as follows:

a) . Clean your solar lights regularly.
b) .  Put them in areas without shade.
c) .  Check the light sensitivity and if the override switch is turned on.

Post time: May-13-2022