Bullyson
Enlightened
I've seen the Solarforce Cree 820 lumen and Ultrafire SST-50 1000 lumen drop ins for the G2 on eBay and would like opinions on them and if there's other drop ins that fit the G2 with high lumens?
"High lumens" and "Surefire G2" should never be used in the same sentence. The Nitrolon body will retain the heat even if you change the bezel to an aluminum one. The end result would be an overheated light engine and the "high lumens" will end up being low lumens due to heat soaking the drop-in and the LED's life will be reduced as well. The only drive level I would feel comfortable with to use with a Nitrolon flashlight body with an aluminum bezel would be about 500mA. At that drive current you'll get around 200 OTF lumens using an XM-L. If you really want high lumens from your light then I would suggest that you buy a 6P and work on that one.
+1.
Buy a bored 6P or C2 and go a nice Nailbender Dropin. But on't throw away the G2. For that, I would humbly suggest a Malkoff M61L or M61LL drop in. Both will work happily in a G2 from when you switch it on until the batteries run out. The M61L will give you 175 lumes for 5 hours, the M61LL will give you 100 lumens for 10 hours. And don't let the lumens fool you! The beam on the M61L IMO is better than some of the 800 lumen screamers I have.