[shang]

I put a cree led eBay bike light in mine. It's not crazy bright, but it's better than stock. Gasgasman is right about it being tight back there. I started with one of these...



Three cree LEDs. Then I cut the housing down to fit and ditched the driver board. I ordered a driver from ledsupply.com the sits outside the housing. It's a sealed unit you can wire in and add a dimmer if desired. Mine is just double stuck to the back of the light housing.