how does the fluorescent light bulb work

Some wrap around the fixture or are held in place with slides or screws. Check to see if the voltage is still there any way for an extra layer of safety? If you flip the switch and get no response when one was there before, you're typically okay – but electricity is not something to mess with at all.

You'll need to safely turn off the fixture at the circuit breaker to check the ballast. Here are the steps to follow to check if the ballast is bad in fluorescent light. These issues can sometimes happen while it is operating as expected, so it's important to check the equipment before assuming a replacement is necessary. When a ballast starts failing, it will typically buzz or causes the bulbs to flicker. What Are the Symptoms of a Failing Ballast?

If it goes bad, you'll see or hear symptoms that tell you it's time for a potential replacement. Without a ballast, fluorescent bulbs would use the 120V current and quickly burn out and ruin the product. Once the illumination begins, it backs off the electricity to produce a steady light. The ballast delivers enough voltage to start the lighting process. Unlike incandescent and LED lights, fluorescent lighting requires a ballast that sends the correct amount of power into the bulb or tube. How to check if your ballast is failing with your fluorescent lights?

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How does the fluorescent light bulb work