Flashlight Bulb LED 1000 Lumens Smooth Reflector T6 Single Mode 3.0-18V Drop-In - P60 Design: Surefire, Hugsby , C2 G2 Z2 P60 P61 6P 9P G3 S3 D2 501B 502B Smooth reflector for extreme ilumination distance and tightly focused beam Never buy bulbs again - LED lifetime over 100,000 hours Save batteries with 2-3 times the run-time over normal incandescent Extreme distance & tightly held beam Wide Voltage Range: 3.0V~9V.