Flashlight Bulb LED Upgrade - 250+ lumens - CREE R2 Single Mode Drop-in - P60 design: Surefire, Hugsby, Etc. 1 Mode Click On/Click Off Wide Voltage Range: 3V~8.4V Increase your flashlight's brightness up to 250 lumens Save batteries with 2-3 times the run-time over normal incandescent Never buy bulbs again - LED lifetime over 100,000 hours