Posts Tagged ‘jar’


LED Jam Jar Light Part 2

February 19, 2012

3 LED LightContinuing on with the jam jar theme I wanted to make a 3 led light.  Here I decided to use 2 lids glued together so I had somewhere to mount the on / off switch. I mounted the switch in a hole cut in the top lid and drilled a holed in the second lid for the wires to go through.

While the lid has a coating on the inside, I needed to use electrical tape on the inside to prevent any short circuits.

Now, the light works great, but I have no idea ho long the battery will last with 3 leds.

Next up, I want to try making a desk lamp using 2 jars and a power supply plugged into a wall socket.  In this case I would use a lot more leds.


LED Jam Jar Light

February 6, 2012

Circuit & JarCleaning part of our basement revealed some empty jam jars. I decided to put them to use and make an LED light with parts I had lying around.
I first I soaked the jars in warm water to remove the labels. I then cut a hole in the lid for the switch and spray painted the lid green. Then I soldered a small circuit onto an Adafruit proto board, cut of the proto board corners to fit inside the lid and glued the circuit into the lid.

Almost instant LED emergency light.  These might be good for our deck at night in the summer. I’m going to make a few more and play around with adding more LEDs.

Next time I will put the switch on top as it didn’t quite fit on the side.
The circuit uses the following parts:
Proto board from Adafruit
1 coin cell battery
1 battery holder
1 resistor
1 switch

Click through for more pictures.

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