1 X Flashlight Bulb LED Upgrade - 250+ lumens - CREE R2 Single Mode Drop-in - P60 design: Surefire, Hugsby, Etc. Increase your flashlight's brightness up to 250+ lumens with the US made CREE XPG-R5 LED Runs on 2 x cr123 or 1 x 18650 rechargable battery. 3-6v working range Save batteries with 2-3 times the run-time over normal incandescent Never buy bulbs again - LED lifetime over 100,000 hours Textured reflector for extreme ilumination distance and tightly focused beam