I had replaced mine with some H11 drop in LEDs I choose the 4300K just like the factory HIDs that came with cars instead of 6000k that makes more bluish tint but decrease light output on the road and it makes a great difference riding at night time. It was'nt a easy plug and play unit, the size of the heatsink was a little too big and I had to cutoff part of the aluminum heatsink in order to fit. Oh well it is only $40 and it's well worth every penny of it. here are some photos that I told after the installation.