6v to 3v

[Ishwhale]

So i cannot, for the life of me remember this part from my circuits class last year. I have a 6v power source (DMG) and a led that needs 3v to light up. I know that if i put 6v through it it'll ruin it. SO my question is, what resistors/other junk do i need to put into the circuit so that I can wire it up.

 

[bassmasta]

LED Calculator
http://led.linear1.org/1led.wiz

 

[snowpenguin]

ish i don't understand why you don't just tell people it's el wire, lol.

i think we got this figured out in chat.

 

[IKSROG-II]

can i also apply this for getting 3v to a screen?

 

[XCVG]

Short answer- no.

Long answer- you can sort of do it with resistors, but it's generally not a good idea unless your screen has a wide input voltage latitude.

 

[βeta]

Just cut it in half.