Hi friends I am building a LED house number sign and I have the leds all hooked up I am using 3 leds to 1 120ohm resistor and when I look at the sign it looks like a few sets of leds are brighter thenn the other I have a pic to show can someone tell me what I can do to make them all the same. brightness or what I am doing wrong? your help will be greatly appreciated.
Thank you
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Thank you
**broken link removed**