Exceptionally Good LED Power Tutorial
A seriously talented person wrote this article and it's for beginners! http://led.linear1.org/why-do-i-need-a-resistor-with-an-led/
Forum Discussion
So he wants to say that if the current per LED is over 0.02A, you should add a resistor to bring it down to 0.02A. No problem.
OTH, if it's already lower than 0.02, you should regulate the voltage to bring it up to 0.02A. Many users won't like the idea of voltage regulation.
In other words, - order a few dozen of Chinese boards, throw away those that are not close to 0.02A at whatever is prevailing voltage in your DC system, and use the rest.
OTH, if it's already lower than 0.02, you should regulate the voltage to bring it up to 0.02A. Many users won't like the idea of voltage regulation.
In other words, - order a few dozen of Chinese boards, throw away those that are not close to 0.02A at whatever is prevailing voltage in your DC system, and use the rest.
