A: A spare bulb is located in the base of the lamp holder assembly. The Scorpion uses a high output xenon bi-pin light bulb. DO NOT TOUCH A HOT BULB. Allow the bulb to cool before handling. The bulb is under high internal pressure. ALWAYS WEAR SAFETY GLASSES WHEN HANDLING THE BULB. To change the bulb unscrew the head of the flashlight from the barrel. Firmly grasp the burned out bulb and pull it from the lamp holder assembly. To access the spare bulb turn the lamp holder assembly over so that the battery contact/cover is facing upwards. Remove the battery contact/cover by prying it upwards. The spare bulb is located in the recessed area in the center of the lamp holder assembly. Turn the lamp holder assembly over so that the bulb side is up. There are four holes visible in the bulb side of the lamp holder assembly. The pins of the bulb mount in the two holes that have square metal contacts abutting them. Carefully align the pins of the new bulb with the contact holes in the lamp holder. Push the bulb into the lamp holder. Use care to make sure that the pins are straight and that the bulb is firmly seated in place. Note: Don? t touch the new bulb with your fingers, If you do accidentally touch the bulb make sure to wipe it off thoroughly with a clean cloth.