Need some help with wiring LEDs


New member
I am going to build my own wiring kit for my Wraith. I know I know but I like to do things myself. I have a Frys close so I plan to get things from there. I am going to use a servo for the controller. My question is what kind of LEDs do I buy. I found some 5mm 3v 20mA LED's. Are these what I want? Using the servo board should add the resistance correct? My last question is can I wire LED's in series for a light bar?

Thanks in advance for anyone who wants to suffer through this with me.