Turn off the circuit breaker to the rail light system. This reduces the chance of electrical shock while replacing the bulb.
Position a step ladder under the light bulb that requires replacing. Examine the bulbs to determine how they come out of the lamp shade. Flat-sided halogen bulbs simply pull out of the lamp shade. Grab the bulb with a paper towel and pull it straight out of the lamp shade.
Grab the bulb with a paper towel and twist it counterclockwise ¼ turn, if your bulb is oblong. This type of halogen bulb has pins that disengage when you turn it counterclockwise. Once the pins disengage, pull the bulb out of the fixture.
Tear off a 12-inch piece of masking tape from the roll of tape, if your bulb is round. Form a circle out of the tape with the sticky side pointing out. Push the tape onto the bottom of the bulb. Turn the bulb counterclockwise using the tape as a handle. Continue turning the bulb counterclockwise with your fingers once you are able to grab the sides of the bulb.