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Well, i'm a newb at electronics, but every so often I like to just muss around with stuff and try to make stuff.
So today I was going to go buy a few blue LED's, a couple of 9v batteries, and some pvc and make a flashlight
The LED's I plan on getting run on 5-6v's and have a 30mA current.
Now I want to make sure I don't blow any LED's, seeing as they are a tad expensive, and was wondering if I got this right.
If I was to run 3 6v 30mA current LED's on 3 9v batteries, I would need 200 ohms of ressistance, yes?
I was also wondering, would it be best to buy half volt ressistors or forth volt ressistors. They're both same price but I was wondering which would be best.