Same drop-in for the G2/6P will also work with this.
Model # is Surefire P60L.
The Surefire lights use standard P60 dropins.
The Surefire brand LED's get only 80 lumens but a Ultrafire or similar Q5 dropin is still in the P60 format and gets 200 lumens. Just do a search on E-bay.
The P61L from SF gives a TRUE 200 lumens for about an hour then regulates at 100 lumens for several more...
blake



























