Dorcy 3V LED Flashlight Bulb is the upgrade for your old flashlights, delivering a bright 40 lumens of light output for improved visibility and performance. Designed to operate with any 3 cell, 4 cell, or 6V lantern or flashlight, this versatile LED bulb runs on 4.5V to 6V, making it compatible with a wide range of devices. Built to last, it an impressive lifespan of up to 100,000 hours, equivalent to 10 years of reliable use before needing . This energy-efficient LED conversion bulb enhances the value of your flashlight by providing long-lasting, bright illumination in a compact package. Model Number: 41-1644