I've ordered from http://www.ledshoppe.com and they have the OEM Topeak White Light

http://www.sjscycles.co.uk/product.a...S&currency=USD

http://ledshoppe.com/Product/ledp/LP3019.htm

I've bought a lot of things from LEDSHOPPE, and you get what you pay for. The Topeak Whitelight knockoff, however, has a crappy tab that breaks, so be careful or it might be worthless. I have three of the lights, and besides the tab, they are great.