Well $50 at Radio Shack and now I am an "expert". I had to buy an entire combo pack of resistors to get the three 39 ohm's I needed.
I am starting to get it. You just use a LED calc program which tells you exactly what to do.
4 AAA batteries, 3 5w blue LEDS, 3 39OHM resistors. A new solder gun....
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