SUREFIRE CENTURION 2, CREE R-2 290 LUMENS (CLAIMED)
FENIX T-1 CREE Q-5 225 LUMENS
One word of caution with high intensity LED lights: most are not thermally regulated and they will suffer from their own heat if used for an extended period. They will get very hot and the tint will change. Short use of 5 minutes or less is recommended, especially in lights like the G-2 that has a plastic body and head.
All metal flashlights like the Surefire 6P are better at dissipating the heat, and in them a few more minutes of constant use can be achieved before the heat will damage the module.
The big heavy head of the Fenix acts as a heat sink, and this light can manage to run much longer without the heat affecting the module.
Besides, the Fenix has a second setting that will run the light at 60 lumens for 10 hours.
So, if you already have a Surefire you want to upgrade, the aftermarkets lamps are great.
If you need a new light look at the Fenix line.
If you need a truck, open spaces light, the Bear Cub is a great value as it is rechargeable and very bright as well as a 150 yards thrower.
Cheers
Black Bear