LED Lenser 880052 M1 LED Flashlight, Black
This small but mighty M1 is the one model in this series that calls for CR123 batteries. Not only do CR123 batteries have an extremely long shelf-life (10+ years) and maintain high voltage for plenty of power, they also work well in extremely cold temperatures where standard batteries can drain quickly. The M1 makes a great light for those extreme adventures where lightweight and powerful, with the means to take on the elements, is necessary.