To change a halogen torchiere floor lamp bulb, first unplug your lamp and let the bulb cool. Once cool, unscrew the covering, remove the bulb slowly, and insert a new one.
Halogen lamp bulbs burn bright and become extremely hot. They can also retain heat even after switching the lamp off.
Avoid handling the hot bulb with bare hands. Don a pair of cotton gloves or use a towel to remove the bulb. Unscrew the glass cover and set it aside. Push gently on the halogen bulb and slowly unscrew it in a counterclockwise direction. If your bulb is held in place by pins, carefully push on these until the bulb can easily be extracted.
Glance at the removed bulb and locate the ANSI code printed on it. Your replacement bulb should match this code and also its wattage. Screw in the new bulb in a clockwise direction. Replace the covering and plug your lamp back in.