I just bought a Lumotec IQ Fly from Harris in Boston. I am currently running a Lumotec Oval Senso Plus off of the Shimano dynohub built into the front wheel of my 2007 Dahon Mu Xl. I have been disappointed with the brightness and color of the halogen lamp. I have been thinking about the IQ Fly for a while now, and I figured to give it a try. I will report back after I have it installed.