My local big box store sold me this bulb for my Porter Cable 18v Lithium Flashlight (model PCL-180FL). After about one half hour of continuous use the flashlight stopped working.  Upon opening up the lens holder I discovered the bulb had melted through the bulb holder.  Fortunately, the Porter Cable service rep took pity on me and is mailing me replacement parts so I can fix my flashlight. None the less, before buying this bulb, make sure it is truly compatible with your flashlight or you may end up destroying your flashlight.  The correct bulb for the Porter Cable 18v series of flashlights (e.g. PCL-180FL and PCL-18FL) is a KPR 18v 0.3amp krypton bulb(Porter Cable part number #90534275).