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Vendor for lower power LEDs. Lower the better.? Answered

I'm working on a prop mod for poops and giggles. I'm trying to make LEDs run on a potato battery. May be impossible, but I'mma find out.

I need the lowest power LEDs I can find

Discussions

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iceng

8 years ago

Here is how to do super potato.
Do let me know if you try it and how long it powers the LED ?? A

potatoLED.PNG
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steveastrouk

8 years ago

Look for high efficiency red LEDs, and limit the current to 1mA or perhaps less, you won't get much light but you'll get some. You'll still need to generate more than 1.2V to drive them - I've no idea what voltage and current you can expect from a potato battery.....

Steve

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Dinkum Thinkumsteveastrouk

Answer 8 years ago

Thanks for the feedback guys! I had just remembered I had posted it here. I don't need light to illuminate, just to suggest glowing really. Next part is to see if I can supercharge one potato do do it...

Thanks!

-Dinkum

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iceng

8 years ago

Google is amazing......  A

potatoLED.jpg
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steveastroukiceng

Answer 8 years ago

Hence the term Pot-ential.....

I wonder if there is > 1.2 V there ?

Steve

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icengsteveastrouk

Answer 8 years ago

Only this actual. 
Looks like a cut up sandwich ( Large area plates for current )
then banded together for output to the lowest forward voltage
Red LED as you  First  Foretold.

You and I would have surely used the colored clip cords correctly :-D

A

200px-PotatoBattery.png
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aelias36iceng

Answer 8 years ago

Adding to that, you can use thick copper wire and galvanized nails for the electrodes/terminals, and make sure to connect the copper terminal to the longer lead of the LED (positive), while the zinc terminal to the lead below the "dent" in the lip of the LED (negative.)