Looking For a Driver Solution - 2.5V @ 7A, can use up to a 32650 cell

Im thinking of building a similar project to yours Rhd, the only thing is I want a 4W 808, they don't really give you enough specs on Ebay, does anyone know any other sites or people.

Also I need a driver aswell probably adjustable from 3 to 5 amps.. I know 5W are around 4.83 amps in. but for some reason no specs are given on ebay for the other wattages..