With Patented smart-signal Technology And Exclusive Bat-Wing Design, these kits offer easy hassle-free installation with no splicing required! Up to 5 times brighter than stock lights and run cooler using less energy than traditional bulbs, these LED Sequential's won't melt your lenses. Each kit works with stock lenses and housings, so there is nothing extra to buy. Lifetime warranty! Please note: Sequencing speed is not adjustable.