i just wire the red and blue in parrallel and pot the red man. you really dont even need a buck puck OR a driver. just hook them straight up. the 18650 can put out the current no problem. the blue can handle 3.7 volts as ive wired it no problem but the red will need to be resistored and hey, thats what the pot is for. all you got to do is adjust the pot to achieve the purple you are looking for and viola there ya go. lots of money, time, and brain energy saved. you also dont even need two 18650s that will give you hella run time but even just one will do. whats tims li ion 18650s? what like 2400 mah? well runing the red and blue at about 700ma a piece, 1400ma. heck you are looking at about an hour and 30 - 45 minute run time, possibly almost 2 depending on your red.
its all about how you wire your LED.
hope this helps
btw incase youre wondering... a pot is potentiometer. and its bassically an adjustable resistor. just turn the little nob on it to allow more or less voltage to pass, thus increasing or decreasing the amount of red light.
well i need to get to bed i have work tomorrow. and the next day. and the next... for the rest of my life.
lol.
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