Resistor help again

[Blackscorpio]

Hello
I am not good in this ohm law math, so is there anyone that
Can help me with the resistors
I want to have a dark purple light
I use 3.7 battery
Tri cree:
Rblue 3.4 v 350 amp. (1ohm
Red 2.59 v 350 amp (3.3ohm 1w
White 3.15 v 1000amp (1ohm 2w
80350d10bbeb2bfa63bc854d80825637.jpg

[Stevekrause83]

Are we to assume the image is the effect you are trying to achieve? Are you using a sound card? If so, what card?

I am by no means an expert, but your Red and Royal blue dice seem to be very under powered.

https://www.youtube.com/watch?v=JbHp..._0LXNS&index=9
I think you should use the method prescribed in the video.

[Blackscorpio]

Yes it must be little bit like this
Nano biscotte sound board
What do you mean with under powered?
Yes I have seen this on YouTube that's how I get this information on resistor but I am not sure if it's not to much to weak resistant

[TheCheeker]

What do you mean with under powered?

I think what he's saying is that running the red and royal blue dies at 350ma is under powering them. You can run those up to 1000ma. 350ma is the bare minimum.

[Blackscorpio]

I think what he's saying is that running the red and royal blue dies at 350ma is under powering them. You can run those up to 1000ma. 350ma is the bare minimum.

so what must i do than ?

[rlobrecht]

so what must i do than ?

Use 1000 mA instead of 350 mA when calculating your minimum resistor. You'll probably want a higher than minimum resistor for the red, or your purple will be too pink.

[Blackscorpio]

a yes its this Forward Voltage @1000mA, that i must calculate my mistake
FoC white 3.15-3.7/1= 0.55 1ohm 2w
Rblue 3.40-3.7/1 = 0.3 5ohm3w
Red 2.59-2.7/1 = 1.1 1ohm2w
so for purple i resist the just the Red 1.2 is not in enough how far must i go than, to 2ohm or 2.7ohm10w?

[rlobrecht]

You should buy multiple resistor sizes and try different combinations until you get the color you like.

There is no fixed rule about making purple, because every LED is a little different, and everyone perceives color a little differently.

[Blackscorpio]

You should buy multiple resistor sizes and try different combinations until you get the color you like.

There is no fixed rule about making purple, because every LED is a little different, and everyone perceives color a little differently.

yes i thouth so how far must i co to 3 ohm or more
and the white and blue is this good ?