Fluorescent Light Wiring Diagram | Tube Light Circuit

This post "Fluorescent Light Wiring Diagram | Tube Light Circuit" is about how to wiring fluorescent light and "how a Fluorescent Tube Light works". The wiring process of fluorescent tube lamp/light with Ballast,Starter is quite easy and simple. In most cases when we buy a fluorescent light it comes in a complete set with all wire connected. If you want do it yourself (DIY), you can buy all the parts individually. And you can complete all connection of the fluorescent light/lamp with the help of this wiring circuit diagram.

Fluorescent Light Wiring Diagram

Fluorescent Light Wiring Diagram-Tube Light Circuit
Fig: Fluorescent Light Wiring Diagram

Main parts of Fluorescent Tube Light:

     1.Fluorescent Tube
     4.Holder, wire etc.

How Fluorescent Light's works:

The starter is like a key of fluorescent light because it is used to light up the tube. When we connect the AC supply voltage to the circuit, then the starter act like short circuited and current flow through those filament (located at the first and second end of the tube light) and the filament generate heat and it ionized the gas (mercury vapor) in the fluorescent tube lamp. So the gas becomes electrically conductive medium. At the same time when the starter opened the circuit path of two filaments from series connected, then the ballast release its stored voltage. And it makes the fluorescent tube fully lighten. Now the starter has no job in the circuit, if you open it from the circuit the fluorescent tube light will be still lighten, until you release the main supply.


  1. Very easy to understand thanks a lot

  2. The fundamental principle behind Edison's lightbulb. The on and off circuit is revolutionary.

  3. The fluorescent lamp as a contemporary invention, but the principle is still the same in manufacturing this patent diagram.

  4. I don’t think many of websites provide this type of information.

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  5. Thanks buddy for this nice post. it is easy to get.
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  6. plz any one can explain starter circuit diagram and function

  7. this is the first time i have come across the clear and simple lesson