I just started getting into electronics, and as my second project, I have decided to make a bright blue LED flashlight. (my first was a green LED that lit up with a toggle switch, 2 AAA batterys, and enclosed in a small project box)
my dilemma...
i am using 3 AAA batteries... = 4.0 volts
my lights are high brightness blue = 3.7, 4.0 volts MAX...
after hooking it all up, it shone quite brightly, but has a green tint to it...
so, i was told to get a resister. what type do i need?
i still have trouble converting my units, and am not sure the amps (m amps)
btw, i am using 22-gauge wires, and have access to larger and smaller gauge, but am sure it is not the issue...