The 2.4 Volt Rechargeable Replacement Bulbs from Dorcy Model 41-1670 are designed for use in flashlights. These bulbs are powered by two AA batteries and provide a beam of light with an operating range of more than 20 meters. With a single LED and Krypton lighting technology, these rechargeable bulbs offer a reliable and efficient lighting solution for various tasks in the workshop, home, or garden. Easy to install and long-lasting, these bulbs provide a convenient and cost-effective lighting solution for any space.