Mason Jar Solar Lights for Kids

Science for Kids | DIY Solar Night Light

This month I’m blogging about science projects for a series of STEAM (science, technology, engineering, art, and math) posts with a group of my favorite bloggers. More on that in a moment. But first, I’m excited to share our contribution of Mason Jar Solar Lights for Kids, aka Easy and Affordable Night Lights! 

This week’s theme is harness, and here’s the definition that I’m going with…

Harness Definition | TinkerLab.com

To get this going, my kids and I harnessed the sun’s energy and pulled together these quick, functional, affordable, and earth-friendly mason jar solar lights that my we can carry with us off to bed at night. These lights are all over the internet, and if anyone knows the original source of them, please give a holler! I’m giving ours a unique twist by turning them into night lights with frosted glass, although I’m certainly not the first to do that either.

However, I’m making this kid-friendly and sharing a cool art activity at the end of this post. Are you still with me?

We made two lights: One frosted and one clear. The frosted light was preferred as a night light and the clear glass was a hit as the source of a drawing prompt.

Supplies for Mason Jar Solar Lights

Note: This post includes affiliate links

  • Wide Mouth Mason Jars. These Mason Jars by Ball are great
  • Solar Path lights. I found our locally, but these via Amazon look like they will work. Some lights will not fit in the top of the mason jar, so be sure to measure it first.

diy mason jar solar light

Steps for Mason Jar Solar Lights

  1. Take the solar pathlight apart by gently twisting the top off of the base. Remove the paper strip that protects the battery, as directed with the light instructions.
  2. Place the solar panel in the sun for a full day
  3. Fit the solar panel piece in the top of the mason jar. It should fit snuggly.
  4. Use it as a night light, emergency light, or picnic illumination.
  5. Easy, right?!

DIY Frosted Mason Jar Solar Light

We also made a frosted jar. Or I should say that made a frosted jar with etching cream which is not at all kid-friendly. Etching cream is NOT to be used by children and can burn skin. Please be cautious, wear gloves, and carefully follow the instructions on the etching cream jar for safe usage.

frosted mason jar tutorial

Supplies for Frosted Mason Jars

How to Make a 5 Minute Solar Night Light for Kids | Save Money | Help the Environment!

Steps for Frosted Mason Jars

  1. Place your jar on a piece of cardboard or covered table.
  2. With gloves on, thickly coat the outside of your jar.
  3. Leave the etching cream on for at least 60 seconds (per directions on the bottle). After 60 seconds, my glass was only partly etched, so I did it again and left it on for 3 minutes.
  4. Wash the etching cream off.
  5. Clean your brush per usual.
  6. Be sure to carefully follow the instructions on your etching cream.

How Solar Lights Work

For the tinkerers, after you twist off the top of the light unit, take a look at the underside and you’ll see a battery pack, wires, LED, and controller board.

On the side that faces up you’ll see solar cells. The solar cells are connected to the battery via a diode. The battery gets charged during the day, and the diode tells the battery current to stop sending a current back to the solar cell at night.

Also inside the unit is a photoresistor, which senses darkness and signals that the LED should turn on when it doesn’t recognize very much light.

Turn this into an Art Activity

Once our awesome and affordable Mason Jar Solar Lights were done, we used them for a fun drawing prompt. Click over here for the full project.

Mason Jar Solar Light Drawing Prompt

Activate Learning with STEAM

If you’ve been a loyal TinkerLab fan (thank you! you mean the world to me.) you’ll know that I’m happiest sharing projects that live at the intersection of disciplines. Too often we’re quick to separate science from writing or math from art, but when we seek out ways to make interdisciplinary connections, learning can be more meaningful and novel discoveries can be made.STEAM Activities | Teabag Hot Air Balloon

In that vein, over the next few weeks I’m joining a creative group of engineers, scientists, educators, and artists to launch a new series called STEAM Power, which celebrates interdisciplinary learning with projects that circle around STEAM (science, technology, engineering, art, and math) ideas. This week’s theme is REACT, and you can see the other reaction-related ideas here:

Tiny Dancers, Homoplar Motor | Babble Dabble Do

Design Thinking and Building Empathy | Meri Cherry

10 Ways to Play and Learn with Springs | Left Brain Craft Brain

Simple Circuit | What Do We Do All Day?

Rubber Band Car | All For The Boys

Lego-inspired Electric Play Dough | Lemon Lime Adventures

How to Build a Simple Electromagnetic Train  | Frugal Fun for Boys

STEAM on Pinterest

You might also enjoy following my STEAM + STEM Activities board on Pinterest for more ideas like this.

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Easy Mason Jar Solar Light | Save Money! | Make it in 5 Minutes


  1. Thank you, Meri. I think the drawing prompt is where this project really shines.

  2. […] Once the rock was selected, we placed it in a small glass mason jar. We used 4 oz. mason jars by Bell (affiliate), and I find ALL sorts of uses for these in our art and science projects. We store homemade paint in them, turn them into artistic tea light holders, and use their larger cousins for our new solar lights. […]

  3. Before purchasing a device, it is necessary to know the important function of a jar opener, so as to get the best one, not just for the looks but also for the usability. As most people would expect, it’s an important feature that is required to make things easier and hassle-free.

  4. This are some really good jars, And you have shared nice info which one can take in account while buying Jar for solar lights. It is indeed very helpful in making a buying decision.

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