Phoebus Small Convertible Tactical Flashlight, CR123 Or 2 AA PK01CR123-2AA comes with a body extender for use with either one CR123A type, which is included, or two AA type batteries, also included, and provides a continuous run time of three hours. This Tactical Light by Phoebus is designed for rough use, with a Type III military grade hard anodized aluminum body made to resist scratching or damage from impact. The casing is precision machined from high-strength aircraft aluminum for light-weight and durability. Phoebus Convertible Light has a 1.5 watt CREE LED lamp produces a flawless white beam, good for more than 10,000 hours of reliable service. Phoebus Tactical Light is water resistant, shower proof and rust proof. Rear-mounted on/off switch, long battery life and heavy duty clip for attachment to cap brim or tactical vest makes this an ideal companion for night time duty.