I accidently purchase this item think it be the lead version . once I receive and realize my mistake I still have some use for it so I use it . the function and light output be impressive . the beam adjustment be impressive for the price I pay . still I could not stand be stick in prehistoric time without LED , no offense Thomas Edison , so I start look for a lead replacement when I stumble upon the `` terralux tle-5ex ministar2 Extreme lead upgrade ' . sure it be practically and actually a little pricier than just buy the LED Mini mag but to I it be a matter of pride and I enjoy reuse old stuff specially if it can be retrofit . a few day later I have a new state of the art Mini Mag . the difference be night and day , no pun intend . I notice the lead minus mag do have a slight different look to it , some would say more futuristic but the upgrade really enhance the light and energy efficiency of the classic Mini mag . to top it all off I find my old minus mag under the couch so guess what I do , yeah I order another upgrade kit so yeah I have two awesome minus mag now . the short of it be that this be a great little flash light for the price but I highly recommend you buy the led function which will make up for the premium in battery savings alone . great durable build and I with my upgrade kit I be happy as can be .