WAZIPOINT Engineering Science & Technology: Tube Light Wiring Diagram with Capacitor

Saturday, May 13, 2023

Tube Light Wiring Diagram with Capacitor

How Wire the Tube Light?

A tube light or florescent tube wiring is simple but we frequently face questions with the issues-   how to wire fluorescent lights to plug? how to find a double tube light connection diagram, tube light connection with electronic choke, tube light connection with choke and starter, and tube light connection with a capacitor, how to wire a fluorescent light fixture with a diagram? how to assemble tube light? and so on.

Okay, let’s know first why fluorescent tubes still need where CFL lamps; LED lamps are available. Actually, CFL and LED lighting products are produced on a large scale but LED lights cannot replace tube lights thoroughly, because the tube light gives smooth bright light, but till now LED can’t.

Low-pressure mercury vapor gas discharge lamp or tube light is called fluorescent light and mostly produces a white light that can light last longer than CFL or LED.

Schematic Wiring Diagram for Two Tube Light with One Ballast (Choke).

Two Tube Light with One Ballast

Here in this tube light wiring diagram, you will find two fluorescent tubes are connected with one Choke or ballast, two separate starters are used for each tube and finally connected to a 230V power supply through a switch to ON/OFF both tubes together.

Working Principle of Tube Light

Making a real tube light connection following the above wiring connection, tube light, ballast, starter, and fluorescent light is required. 

Each fluorescent tube has two filaments with four terminals;  the starter is connected between two filaments, and the ballast is connected between the main AC supply and one filament in the tube light.

Here another terminal in the tube light is directly connected to the AC supply. 

To ionize the mercury atoms in the tube light starter element is used, after the ionization operation of the starter it does not need a fluorescent lamp. 

The ballast is employed to convert the AC supply frequency to high frequency and the ballast regulates the supply given to the tube light.

What is Ballast or Choke? and How Does it Work for Tube Light?

Florescent Tube Choke
Fig-3: Typical Fluorescent Tube Choke

This is a well-known typical tube light ballast; this electric device actually produces high voltage by using low-frequency AC voltage that helps the tube light mercury vapor gas to ionize.  After ionizing, this ballast or choke reduces the output voltage level.

This means in a fluorescent lighting system, the ballast regulates the current to the lamps and provides sufficient voltage to start the lamps.

What happens without Choke? ( ''I am not sure this CHOKE means Coca-Cola or eyes'')
Anyway, without ballast in tube light, to limit its current, a fluorescent lamp connected directly to a high-voltage power source would rapidly and uncontrollably increase its current draw.

What is the Tube Starter and How Does Work in Tube Light?

Typical Fluorescent Tube Light Starter
Fig-2: Typical Fluorescent Tube Light Starter 

Fluorescent tubes/lamps are filled with mercury vapor and A choke is a coil of wire. Tubes or lamps use an electric charge to excite mercury atoms in order to produce ultraviolet light. 

A glow starter or commonly known as a starter is used in the tube light circuit to provide an initial current to the filaments of the tube light.

The starter is placed parallel to the tube filament each of that contains a small neon lamp-like setup with fixed contact, a pics of the bi-metallic strip, and a small capacitor

The Starter Provides an initial current flow path to the filament of the tube. It becomes inactive after the gas ionization and current flow in the tube.

Tube Light Wiring Diagram with Capacitor


Florescent wiring diagram with capacitor
Fig-4: Florescent wiring diagram with capacitor

The figure above already explained the wiring diagram of a florescent with a capacitor. Hope no need for further explanation. Rather we can explain why a capacitor is required with the florescent connection.

A tube light consists of a filament & a choke coil or inductor coil for lighting purpose. When this choke gets a power supply as its nature we see a delay in its switching action, it happens due to its inductor nature. 

  1. The capacitor can reduce this starting time delay;
  2. The capacitor can reduce radio interference due to switching activity; 
  3. The capacitor can improve the overall power factor of the system.

It is possible to omit the capacitor on the individual lamps and to centralize them in the switch room and automatically switch in as many as required to keep the power factor within acceptable limits.

History of Fluorescent Lamp

In 1852, Sir George Stokes discovered the transformation of the ultra violates ray radiation into visible radiation.

From this time to 1920 various kinds of experiments had been done to develop low and high-pressure electric discharges in the mercury and sodium vapor. 

A major breakthrough happened in the 1920s, the ultra violate ray gets converted into visible light rays by using appropriate fluorescent material inside the lamp.

Later, Dr. W. L. Enfield in 1934 had received a report from Dr. A. H. Crompton about the use of the fluorescent-coated lamp.


  1. This is my first time pay a visit at here and i am actually happy to read
    all at single place.

  2. Hi there! Quick question that's totally off topic.
    Do you know how to make your site mobile friendly?
    My site looks weird when viewing from my iphone4.
    I'm trying to find a theme or plugin that might be able to correct this problem.

    If you have any recommendations, please share. Thanks!

  3. Hurrah, that's what I was looking for, what a information! present here at this website, thanks admin of this website.

  4. I am just commenting to make you know of the really good experience my cousin's daughter enjoyed checking your web page.

    She picked up too many things, including how it is like to have a very effective teaching heart to let many others without difficulty have
    an understanding of a number of grueling topics.
    You undoubtedly did more than our desires. Thanks for churning out the warm
    and friendly, dependable, edifying and in addition cool tips
    about your topic to Gloria.

  5. What i don't realize is in reality how you're not really a lot more neatly-appreciated than you may be now.
    You're so intelligent. You realize thus significantly when it comes to this subject, made me personally imagine it from a lot of various angles.
    Its like men and women aren't interested until it is something to do with Girl gaga!
    Your individual stuffs nice. All the time handle it up!

  6. If some one desires to be updated with latest technologies after that he
    must be pay a quick visit this site and be up to date every day.

  7. Great - I should definitely pronounce, impressed with your site.
    I had no trouble navigating through all tabs and
    related info ended up being truly easy to do to access. I recently
    found what I hoped for before you know it at all. Reasonably
    unusual. Is likely to appreciate it for those who add forums or something, website theme .

    a tones way for your client to communicate. Excellent task.

  8. It is appropriate time to make some plans for the future and it's time
    to be happy. I have read this post and if I could I want to suggest you some interesting things or
    tips. Perhaps you can write next articles referring to this article.
    I want to read more things about it!

  9. Hi it's me, I am also visiting this web page daily,
    this site is truly nice and the viewers are genuinely sharing nice thoughts.

  10. Great weblog here! Additionally your website quite a bit up very fast!
    What host are you using? Can I am getting your associate
    link to your host? I wish my site loaded up as fast as yours lol

  11. I'm really impressed along with your writing abilities
    and also with the format to your blog. Is this a paid subject or
    did you modify it yourself? Either way keep up the excellent high quality
    writing, it is uncommon to peer a nice weblog like this one today..

  12. Excelкlеnt article. Keeep writіng such kinnd of information on your
    blog. Im reаlly imressed by it.
    Ꮋi there, You hawve pеrformed a great job. I'll definitely digg
    it and in my view recommend to my friends. I am confident they wjlⅼ bе ƅenefited fromm thiѕ site.

  13. I have read so many posts about the blogger lovers but this
    piece of writing is really a fastidious paragraph,
    keep it up.

  14. such a nice post i really apprciate your writting skills and thanks for providing me all information regardings Living Room Lighting Singapore . Living Room Lighting Singapore

  15. The Jainsons Lights, which is situated in jainsons lights, is committed towards providing innovative lighting solutions. We try serving the professional and consumer markets; we lead the industry in leveraging to transform homes, buildings and urban spaces.We have a team of dedicated development engineers who design the lights for different places.

  16. Looking for a wire crimping machine in your area ? Then we are the best for you, who suit your expectations. We have huge experience in this field. We are 100% dedicated to finding you a high quality wire crimping machine.
    If you want to know more, Please check out Cheers Electronic Technical Co.LTD: https://www.terminal-crimping.com/Wire-crimping-machine.html

  17. Θαυμάζω αυτό το άρθρο για το καλά ερευνημένο περιεχόμενο και την εξαιρετική διατύπωση. καθώς παρέχουμε ηλεκτρική λάμπα σε προσιτές τιμές. για περισσότερες πληροφορίες επισκεφθείτε τον ιστότοπο electronio.

  18. I am glad to found this post, it's a good one. I am always looking for quality posts, I hope you will be adding more in the future. thanks for this.240 Volt Fluorescent Lights Online

  19. Following examining your article, I was stunned. I comprehend that you clarify it well as a rule. Also, I expect that different perusers will, in addition to experience how I feel in the wake of looking at your article. Led Bulb

  20. Purchase Cob Led Downlights from Jainsons Lights. Other than decorative lights, we also offer various lighting variations. Today, you have got the choice to browse web shops and buy online. If you're still hesitant about purchasing lights online, you may want to contemplate the advantages and convenience that online shopping must offer.

  21. This Article is Awesome. It’s helped me a lot. Please keep up your good work. We are always with you and Waiting for your new interesting articles., We’re a leading distributor and supplier of IECEX Approved Lighting, Visit our site for more info.

  22. I think this is an informative post and it is very useful and knowledgeable. therefore, I would like to thank you for the efforts you have made in writing this article. 15kv capacitor

  23. As stated above the capacitor will charge to 63. 2% of its final voltage at 1τ. The capacitor will be at
    about 99% of its final charging voltage at 5τ.فروش عمده خازن

  24. I have to look for goals with essential information on given point and offer them to instructor our inclination and the article.

  25. Buy new luxuries best wall lights for living room . Ashoka lites is one of the best leading online store in india which have a collection of very beautiful and branded led lights . Without wasting any time just order now !

  26. This comment has been removed by the author.


Thank you very much to visit and valuable comments on this blog post. Keep in touch for next and new article. Share your friends and well-wisher, share your idea to worldwide.

You may like the following pages