I'm using 5mm Green 3.5v 30ma for a string blade with a NBv3 powered by a 3.4v battery. I'm using about 120 of them currently for the blade. When the blade is lit some spots are darker than others, inconsistently through out the blade. Any tips on how to prevent this? I'm not using any resistors on the leds because I thought it was unnecessary with their forward voltage being at 3.5v. And honestly, I don't quite understand how use resistors with so many leds. Do I need to use them since there are so many wired together? Thanks for any help
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