Not to worry about warrantee and LED type lighting...either one will last well over 5 years. The only downside to LED type lighting is they do lose may be 5% of their brightness over 10-15 years (telephone equipment experience), but this is using older technology, LED quality, materials and brightness performance is much better these days, so likely not nearly an issue. I have LED lights and the brighter halogen turn signals, and they even get comments from other Harley riders that pull up along side, and ask me about them. :s
Just change out the stock ones or at the very least, get the kit using diode logic module to give you running lights as well as turn signals. Bright lights save lives. My only accident was when unattentive cager ran into me when I was stopped at a stop sign, fortunately she did not hit me too hard or push me beyond the crosswalk area. Have used LED rear brake lights and brighter running lights ever since. Also learned to tap the brakes to signal tailights just to be sure. I have heard my share of brake squeals behind knowing their doing the job.:11: