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Yes, there is an excitation current that flows through the primary side of the transformer which is located in the magnetic ballast's casing.

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How much power does a fluorescent fixture use with no tubes installed For example a switched on 8' fixture with a single tube with an old ballast.?

A fluorescent fixture with no tubes installed will still consume power, typically around 5-10 watts due to the ballast and other internal components. This power consumption is significantly lower compared to when the tubes are installed and the fixture is operating normally.


What is wrong with my fluorescent fixture?

First make sure the bulbs aren't blown. If that's not it then you want to make sure the fixture is getting power. If it's getting electric to the fixture then the ballist is bad. ( IF YOU DON'T KNOW HOW TO CHECK THESE THINGS, PLEASE CONTACT AN EXPERIENCED ELECTRICAIN!) hope this will help.


On your 4 bulb fluorescent only 2 bulbs come on?

On the older fluorescent fixtures a four bulb fixture required two ballasts. Two lamps for each ballast. If you have changed the tubes and it still does not work, it sounds like one of the ballasts is not working. You might want to consider replacing the ballast with an electronic one. One electronic ballast will operate four tubes. The existing end sockets can be re used but they will have to be rewired. There is a diagram on the ballast label that shows the connections. This will allow you to use T8 lamps which are lower wattage. This will save money to you in the long run.


How can you attach a 120 v Light Fixture to a 277 v system do I need a ballast so what kinda of ballast?

To attach a 120V light fixture to a 277V system, you will need a step-down transformer with a 277V primary and 120V secondary. This will allow you to safely power the light fixture at the correct voltage. You do not need a ballast in this case, as ballasts are typically used with fluorescent lights and not for altering voltage levels.


How do you repair a fluorescent light located under a kitchen cabinet?

Unless there is something special about this fixture, it will be cheaper to replace the entire fixture. However if you choose to repair it, the ballast is the most likely reason for its failure. Turn off the power,remove tubes and then the cover from the fixture.You will see a small rectangular object with wires going into it.This is the ballast,usually it is apparent that the ballast has failed.Get the part # from the ballast and pick one up at your local supply house.Replace the ballast and reconnect the wires per old ballast.Also inspect the ends where the tubes connect, sometimes these get burned and do not make good contact.Hope this helps. above answer correct but i would simply replace the tube or tubes first. i have a lot of experience with about 30 of them in my laundromat.

Related Questions

How can I rewire a fluorescent light fixture to accommodate LED bulbs?

To rewire a fluorescent light fixture for LED bulbs, you will need to remove the ballast and rewire the fixture to bypass it. This involves connecting the incoming power directly to the sockets where the LED bulbs will be installed. Make sure to follow proper safety precautions and consult a professional if needed.


How do I perform a t8 ballast replacement in a fluorescent light fixture?

To perform a T8 ballast replacement in a fluorescent light fixture, follow these steps: Turn off the power to the fixture. Remove the cover of the fixture. Locate the ballast and disconnect the wires. Remove the old ballast and install the new one in its place. Connect the wires to the new ballast. Replace the cover and turn the power back on to test the fixture.


How can I replace fluorescent bulbs with LED lights in my home?

To replace fluorescent bulbs with LED lights in your home, follow these steps: Purchase LED bulbs that are compatible with your existing fixtures. Turn off the power to the fixtures at the circuit breaker. Remove the fluorescent bulbs and ballast from the fixture. Install the LED bulbs in place of the fluorescent bulbs. Turn the power back on and test the new LED lights.


What is the process for t12 ballast replacement in a fluorescent light fixture?

To replace a t12 ballast in a fluorescent light fixture, first turn off the power to the fixture. Remove the cover and locate the ballast. Disconnect the wires and remove the old ballast. Install the new ballast, reconnect the wires, and replace the cover. Turn the power back on and test the light to ensure it is working properly.


How can I rewire fluorescent lights to LED lights?

To rewire fluorescent lights to LED lights, you will need to remove the ballast and rewire the fixture to accommodate the LED bulbs. This process involves disconnecting the ballast, bypassing it, and connecting the LED bulbs directly to the power source. It is important to follow safety precautions and consult a professional if you are unsure about the process.


How much power does a fluorescent fixture use with no tubes installed For example a switched on 8' fixture with a single tube with an old ballast.?

A fluorescent fixture with no tubes installed will still consume power, typically around 5-10 watts due to the ballast and other internal components. This power consumption is significantly lower compared to when the tubes are installed and the fixture is operating normally.


How can I change a ballast in a fluorescent light?

To change a ballast in a fluorescent light, first turn off the power to the light fixture. Remove the cover and locate the ballast. Disconnect the wires and remove the old ballast. Install the new ballast in the same position and reconnect the wires. Finally, replace the cover and turn the power back on.


How should I properly wire a fluorescent light ballast?

To properly wire a fluorescent light ballast, follow these steps: Turn off the power to the light fixture. Remove the old ballast and disconnect the wires. Match the wire colors from the new ballast to the corresponding wires in the fixture. Use wire connectors to secure the connections. Mount the new ballast in place. Turn the power back on and test the light. Always follow the manufacturer's instructions and consult a professional if needed.


Why does fluorescent light hum flicker?

Fluorescent lights may hum due to the vibration of the internal components, such as the ballast or the bulbs. Flickering can be caused by a faulty starter or ballast, inadequate power supply, or aging bulbs. Regular maintenance and replacing faulty parts can help reduce these issues.


How to remove ballast for LED lights?

To remove ballast for LED lights, first turn off the power supply. Then, open the fixture and locate the ballast. Disconnect the wires connecting the ballast to the fixture. Remove the ballast and rewire the fixture to directly connect to the LED lights. Close the fixture and turn the power back on to test the lights.


What is wrong with my fluorescent fixture?

First make sure the bulbs aren't blown. If that's not it then you want to make sure the fixture is getting power. If it's getting electric to the fixture then the ballist is bad. ( IF YOU DON'T KNOW HOW TO CHECK THESE THINGS, PLEASE CONTACT AN EXPERIENCED ELECTRICAIN!) hope this will help.


How to install fluorescent bulbs properly?

To install fluorescent bulbs properly, follow these steps: Turn off the power to the fixture. Remove the old bulb by twisting it out. Insert the new bulb by twisting it in securely. Turn the power back on and test the bulb to ensure it is working properly. Remember to handle fluorescent bulbs carefully to avoid breakage.