I am guessing it has the same driver as the UF-H3, but maybe not since that is an XPE and this is an XML. If it's driven anywhere close to 3 amps I am getting one. I really like the ramping feature, the side switch and the magnetic tail also. This really has everything I want in a light at a fairly reasonable price.
Edit: I guess I am late to the party there is already a post on this light, sorry.