This Lisle bulb is the perfect replacement for your 26410 Altenerator Tester. Made by a trusted brand, this bulb is sure to provide accurate readings for your automotive needs. It is designed for use in the United States and comes in a unit quantity of one. Whether you're a professional mechanic or a DIY enthusiast, this bulb is a must-have for your toolkit. It is compatible with a variety of shop equipment and supplies, and is a essential component for any automotive tool. Don't miss out on this opportunity to upgrade your testing equipment with this high-quality Lisle bulb.