I bought one sort of to see how it stands up to a Q8, and definitely disappointing compared, but should be easily moddable, easiest way would be in a single cell configuration, GOLISI 4300 preferred. As a host, it's pretty nice, and at the time, I got mine on a deal for $45, so for that price it's decent.

Maukka cal'ed ANSI rated lumens measured about 3700 lumens (@30 secs), throw about 125 kcd (700 meters)), with CW SST-20's.