Summer just ended and my childhood nights chasing after fireflies are long gone. But the idea persists. I found this LED garden light in Readymade's blog. But the idea itself was created by Evil Mad Scientist Laboratories. All you need are diffused lens LEDs, CR2032 lithium coin cells, blue tape and mason pickling/jelly jars. These lights are temporary. I believe the above faux firefly lantern is based on a similar idea with a wire branch connecting four "floating" yellow LED lights. Give yourself some time to ground ship your lithium coin cells but in total, according to Mad Scientist, each LED garden light costs $1.50 max. Throw yourself a Fall party when the leaves are changing or you can go inside if it's too chilly and watch "Grave of the Fireflies".
Technical Tip: Try to match the forward voltage & current of your LED with the chosen lithium coin cell. At best, get a lithium coin cell with a built-in resistor. A fellow blogger has recommended Ohm's Law to determine the resistor value: resistance = (supply voltage - LED forward voltage) / (LED max forward current). Others have recommended using solar cells as an energy source too. Oh, the options...
About the Author:
Akemi Hong is a writer and graphic designer. You"ll find Akemi
occupied indoors as a marketing and design associate for 1STOPlighting.