Here's what other sites are saying:
10.5 hours battery life.Power transformation technology (PTT) for 3 C-cell power from 1 AA battery.High intensity 1.25 watt LED.Prism reflector system.Lightweight black aluminum casing.Sheath and lanyard included.Maximum watts:1.3.Lumens: 39.1 AA battery included.Length: 4 in.Weight: 2.4 oz.
The deceptively small Coast Digitac II flashlight utilizes advanced technology to rival bigger, bulkier lights that boast the brightest beams. Prism reflector system provides a highly concentrated beam that casts light up to 350 ft.; superbright 1.25-watt LED bulb blasts bright, white light. Power Transformation Technology (PTT) utilizes a microprocessor to digitally increase voltage supplied to the LED and regulate the current. PTT creates the power-equivalent of three C batteries from just one AA battery for an extremely bright beam from a deceptively small source. Momentary on/off operation via the button on the end cap; depress the button completely for standard on/off operation. Rugged aluminum construction with knurled design provides no-slip grip. One AA battery supplies up to 10 hours of operation. Includes lanyard, sheath and two AA batteries.
Coast DigiTac Rechargeable
Fenix PD32 Flashlight
Nite Ize Spotlit LED Light
Fenix PD22 Flashlight
Goal Zero Torch 250 Flashlight
Princeton Tec Pulsar II
Maglite Mini Maglight 2-Cell AA