The Eagletac TX25C has a Cree XM-L2 U3 Cool White LED with max output 950 ANSI lumnes when using the extender. The torch is powered by 1 x CR123 or 1 x RCR123, or with the extender can take 2 x CR123.

Brightness Levels:
Using CR123 battery 
Turbo: 520 - 390 ANSI lumens - 1.9 hrs runtime (drops to 390 lumens after 200 seconds)
High: 138 ANSI lumens - 4 hrs runtime
Mid: 45 ANSI lumens - 12 hrs runtime
Low: 8 ANSI lumens - 100 hrs runtime
Using 2 x CR123 (plus included extender)
Turbo: 950 - 730 ANSI lumens - 1.8 hrs runtime (drops to 730 lumens after 200 seconds)
High: 550 ANSI lumens - 4 hrs runtime
Mid: 270 ANSI lumens - 13 hrs runtime
Low: 8 ANSI lumens - 150 hrs runtime
Using RCR123 battery
Turbo: 620 - 465 ANSI lumens - 0.9 hrs runtime (drops to 465 lumens after 200 seconds)
High: 345 ANSI lumens - 2.2 hrs runtime
Mid: 175 ANSI lumens - 6 hrs runtime
Low: 8 ANSI lumens - 50 hrs runtime

Maximum beam distance 239 meters, waterproof to IPX-8 (2 meters submersible) and featuring a HAIII anodized body and smooth aluminium reflector.

Includes: body extender to enable 2 x CR123, lanyard, pocket clip, spare o rings, split ring 2 x CR123 batteries.