My resistor math

[deviltronix]

Does the follow look ok? (I've been told that amber should require higher value resistor than the white but my math says otherwise)

Amber Tri Cree = 3.28 @ 1000ma
3.7-3.28/1.000=.42
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.5 ohm resistor is ok?

White Tri Cree = 3.15 @ 1000ma
3.7-3.15/1.000=.55
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1 Ohm resistor is ok?

[Forgetful Jedi Knight]

Yes to both. You will generally have to round up a little, since not every single resistor size is commonly made.

[deviltronix]

Thank you..it seems the FV of amber dies is constantly changing. My research was telling me I was incorrect, but alot of it seems to be outdated.