LED Power

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biferi

Joined Apr 14, 2017
533
I am making a Project Display and I found some LEDs with the Legs.

They take 3. Volts and my Baddery Pack holds 4. Dabble A Batteries.

This is ok because I will use Ohms Law to find the Resistor I need.

The Baddery Pack has a Built in Timer so this is great.

The one big down side is all LEDs I find take 80 mA to run.

Can anybody help me find LEDs on Amazon that take around maybe 20 mA or Less?

I ask because 80 mA is going to Eat my Batteries very fast.

I have this Christmas Display I got that takes 3. Tripple A Batteries and it has a lot of Very Tinny Bead LEDs and this Last very very very Long.

So they have to make LEDs that take Less then 80 mA?
 

WBahn

Joined Mar 31, 2012
33,155
Have you bothered even trying to look at Amazon yourself?

I simply searched for "low current LED" on Amazon and got hit after hit after hit, starting with:

https://www.amazon.com/ALLECIN-Asso...1-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1

Most through-hole indicator LEDs are (traditionally) in the 20 mA range (you generally want to run them at between 10 mA and 15 mA).

SMT LEDs are available with very low forward currents, some less than 1 mA. I don't know what kind of low-current through-hole LEDs are out there.

Actually, I just did a quick Google search for low-current through-hole LEDs and immediately found this:

https://www.kingbrightusa.com/categ...=LED&category_name=KCLow+Current+LED&orderby=

It's actually quite amazing what you can find yourself if you'll just put forth two or three minutes of effort.

You also need to work on your spelling to help with your communication. It's not "baddery", it's "battery". It's not "dabble", it's "double", it's not "tripple", it's "triple", It's not "Tinny", it's "tiny". I realize that this is most likely an ESL (English as a Second Language) issue -- and I assure you, your English if far superior to my ability to communicate in your native language -- but it's still worth trying to improve.
 
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