I did an "LED" conversion...yeah, I know I said "HID" but they are so bright it is the same thing basicly. I have installed the real "HID" kits on my son truck using highs-lows-fog lamps. It could be done! But the modifications to the bulb holders would be irreversable. I too have a new mower and worried about the warranty. So this is what I used....2pcs 1156 1093 WHITE 12-LED BRAKE/TAIL/TURN BULB LIGHT | eBay