'07 led tail/brake light

[flybars]

I have the '05fse450. Can u just plug the led wiring in and go, or do u need to add some kind of gadget to work with ac? Also, can I do the same with front and rear blinkers. I've read somewhere in the past that when u plug led into ac the blinkers blink too rapidly. I think u needed to add a resistor? Thanks, Bob