This torch is great for your pack or keeping in the glove box of your vehicle.  It is still reasonaly small while being very powerful.  Uses regular AA Alkaline batteries.

Specifications

LED: Cree 7090 XR-E Q5, life span up to 50000 hours 
Maximum output: 190 Lumens.
Battery:  Uses 2x AA 1.5v Alkaline or NiMH Rechargeable 1.2v batteries.
Dimension:  overall length 155.8mm, bezel Dia: 25.8mm, Body Dia: 20mm.
Weight:  90g without batteries
Function  Three brightness levels 6lm(80h)-45lm(12h)-190lm(1.5h)-Strobe and SOS.

Accessories included:  Holster, Lanyard, Spare O-rings and Spare rubber switch boot.

Accessories optional: Filters (Red, Green or Blue), Beam Diffuser.

Features

• Ultra high performance Cree 7090 XR-E Q5 LED provides Shock-Proof dependable lighting.
• Tactical click-on/off switch with momentary on and lock-out function to prevent accidental activation.                                               
• Full textured reflector for flawless far reaching beam, 200m+ long throw
• High Output, 190 lumens max 
• Long battery runtime, 80 hours max on low.
• Uses regular AA batteries as a convenient easy power source.
• Ultra efficient advanced digital power management system for smooth and even brightness over the duration of battery life.
• Three Digital regulated constant output brightness levels plus Strobe and SOS.
• User friendly interface, loosen then tighten head to select desired output level or mode.
• Automatic memory function, remember last used setting & will come on at same level as when turn off.
• Solid aluminium construction, Ergonomic design with anti-slip knurled finish for firm grip and easy operation.
• Tough durable Type III Hard Anodizing.
• Built to meet Mil-spec MIL-STD-810F.
• Ultra Clear Glass lens, non scratch with Anti-Reflective Coating. 
• O-ring seals provide high water resistant and long service life .
• Pocket Clip (S/Steel, removable).