TUOFENG&reg; Flashlight Bulb LED Upgrade - 450+ lumens - CREE R5 Single Mode Drop-in - P60 design: Surefire, Hugsby, Etc. Wide Voltage Range: 3.6V~12V. Never buy bulbs again - LED lifetime over 100,000 hours Save batteries with 2-3 times the run-time over normal incandescent Smooth reflector for extreme ilumination distance and tightly focused beam Increase your flashlight's brightness up to 450 lumens with the US made CREE XPG-R5 LED