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Help! I'm getting two different answers RE: resistors for blue and green Tri-Cree LED's . I've seen several people talking about using a .47 ohm, .5 w resistor, but the calculator says 1 ohm, 2W. :confused: I'm doing my build with Pico Crumble and custom TriCree- B, RB, G. Can anyone help clear this up?
The online resistor calculator in my signature will not give values below 1 ohm.
In some cases you can do the math yourself, and come up with a 0 ohm solution. The .47 ohm .5 w resistors work in this case. You could also use a 1 ohm 2 w resistor if you like. It won't make much difference.
I prefer this one as it gives exact calculated figures as well as what they say is nearest calculated..use the exact and get as close as you can to that.
http://ledcalc.com/
SO ka! Both of you, domo arigato gozaimasu! Silver Serpent; As I continued working the problem, I began to suspect something like that, =) and Strydur, thank you so much for the link to better calculator. Bookmarked! Now, if I can hit Elliot on my way home before they close, I'll pick up resistors and be in business!
Your help is greatly appreciated, gentlemen. Now to review the rules for the saber build contest! =)
I use the one Strydur mentioned as well as this one https://www.hobby-hour.com/electronics/ledcalc.php
The math is pretty easy, but having a quick tool that also gives you options for commonly available parts makes life a little easier sometimes!