Ok i bought one of the replacement units off ebay. I ordered it on Monday at lunchtime, it arrived Tuesday lunchtime. If nothing else it was great service. I have tried it in a 2D and a 3D, i must say it is very different. I am used to bright white light with my gun light but never had this brightness in a torch before. Now i will order some more and get myself a new Mag Led 2D torch to compare the light between new and converted.