Turn off the power to the bathroom at the main power panel. Examine the light fixture to see how it is mounted. Most fixtures have a mounting bracket which is secured to the drywall or stud. The actual fixture then snaps on to the bracket.Other fixtures have the fixture held onto the bracket with screws. Remove the fixture by removing all visible screws from the fixture.
Instructions. Turn off the power to the bathroom at the main power panel. Examine the light fixture to see how it is mounted. Most fixtures have a mounting bracket which is secured to the drywall or stud. The actual fixture then snaps on to the bracket. Other fixtures have the fixture held onto the bracket with screws. Remove the fixture by removing all visible screws from the fixture. Bathrooms are one of the most renovated spaces in a home. New design ideas and materials help spark a wave of new bathroom styles. During a renovation, usually everything is removed to create a blank slate. Changing the light fixtures and other amenities can breathe new life into a bathroom. Remove Bulbs and Fixture. Remove the existing light bulbs. Be careful as they may be hot and stubborn ones can break off in the socket base. Every light is different, your steps for removal may vary.  Items to Consider. When you are considering removing your light fixtures in your bathroom you have to think about what you are going to replace the light fixture with. Will you be putting a similar style of fixture in its place or are you wishing to move the lighting to a different place in the bathroom. Bathroom light fixtures can be a problem when remodeling your bath. They tend to look the same as the old design and need to be replaced when you change your motif. This is a task that can be done by a home owner with a few pieces of basic knowledge and safety measures. Steps: Remove existing light fixture. 1  Turn off power at circuit-breaker box. 2  Remove lens or diffuser panel from light. 3  Remove lamps or bulbs. 4  Remove ballast cover. 5  Observe how wires are connected for future reference. 6  Uncap black and white wires and test to ensure that power is off. 7  Separate wires from existing fixture. Install new fixture. 1  Remove ballast cover from new fixture base. 2  Remove center knock-out to allow wires to go through the base. 3  Position the base of the fixture at the desired point on the ceiling. 4  Use the tape measure to ensure that the base is parallel to the wall, and then mark the position of the mounting holes. 4. After the bowl is off, you can see your bulbs and fixture base. Unscrew the bulbs and set aside. Pin it. Pin it. 5. Use a screwdriver to loosen the two screws holding the plate to the mounting bracket in the ceiling. Gently twist the base of the light to free it from the screws and the mounting bracket. You may need to also unscrew the threaded post that runs through the base of the light into the mounting bracket. Pin it. 6. Now that the light is free of the ceiling, it's time to disconnect your wiring. Remove globes and light bulbs in the vanity light fixture. Remove screws securing the vanity light to the wall with a screwdriver, then pull the fixture away to expose the wires behind it. 1. Switch the breaker inside your home’s breaker box to its “Off” position to turn off the electrical current running to the vanity light. Turn off the main breaker if you are not certain which breaker you need to turn off in the breaker box. Turn on the light switch to the bathroom vanity light. Turn off the circuit breaker to the bathroom. If the vanity light goes off, you got the correct circuit breaker. Turn on the table lamp, and turn off the light switch to the vanity fixture. Unscrew the bulbs from the vanity light fixture. Set the bulbs on a towel out of your way. 
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how to remove bathroom light fixture