T.O.P. Compact Convertible, 1 Watt LED, Black Aluminum Body Converts from 6 inch 2AA battery flashlight to a compact 3.50 inch single CR123A flashlight High intensity 1 Watt Luxeon LED with 35 lumen output Advanced circuitry guarantees the brightest 1 watt LED possible 90 minutes battery run time Click On/Click Off & Momentary On Tail Cap Switch