Im not sure if these are the things which you said you didnt want (the battery and lamp separate) but one of the ones which i had understood to be fairly standard is the Clulight Range, from Cluson engoneering (google them if interested). They have a CB2 range which is exceedingly powerful available in both 1 and 1/2 mil candlepower.
Ie lent them to several friends after bunnies with pooch and/or r1ifle.
Come with rechargeable batteries, which should wear out i suppose but i have had one for over 5 years now with still good retention.
Also a realy nice firm who will recondition your battery for peanuts.
The units are not the cheapest thing though, just over a ton i think..