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Compact Fluorescent Lamp Repair

By on October 6, 2009

compact fluorescent lamp

One of my ERG member Saeed would like to share this information with you. This is his email:

” My compact flourescent lamp suddenly turned off(went off) last night. i opened it for repairing. here is a circuit board with some of electronic component in it. i checked the component with my analoge ohmmeter. a 2 ohm resistor before rectifier was opened (defective). i replace the resistor and the lamp become good.

if you would like you can share it with other friends(members of your site) and
i will be happy.”

He recommended the website and you need to click on the photo to read the repair information.

Thanks Saeed for sharing!



  1. Sajjad

    October 8, 2009 at 3:16 pm

    Dear Members,
    Any body can tell me how a low Wattage (say 14W)flourescent lamp/bulb can be attached with car/ motor cycle batery. and get instant light when AC current is unavaiable.

  2. Waleed

    October 9, 2009 at 1:45 am

    this is very interesting. I never thought that they can be fixed. on the other side, they cost less than two dollars in my country. it is not worth the time and effort. thanks for the hit though

    • Francis

      May 22, 2013 at 2:37 pm

      one thing more to ad on Jestine's reply is it is good to recycle anything whenever possible to save resources and everything for additional new product like it....

      think green..


      • Jestine Yong

        May 22, 2013 at 3:31 pm

        Hi Francis,

        Yes it is good to repair or to recycle it.


  3. admin

    October 9, 2009 at 8:19 pm

    HI Waleed,

    Yes although it is cheap, i guess it could be fun for beginners to try it out because it did not have many components in it.


  4. sahar

    November 9, 2009 at 6:02 pm

    i highly appreciating it if you send me all components of compact flourescent lamps specially it's amount of all kinds of vapours .

  5. admin

    November 9, 2009 at 9:37 pm

    Hi Sahar,

    Sorry, i do not have such information.


  6. nazariyusoff

    January 13, 2011 at 11:26 am

    hi jestine,why my compact flourescent cannot on,the 882 transistor was burn.plez send me a solution.

  7. admin

    January 13, 2011 at 10:40 pm

    HI Nazari,

    You need to replace the transistor and check all the components in it.


  8. johannes

    April 6, 2011 at 9:43 am

    Hi Jestine, hope you are having a faboulus day today.
    I have a television set, a pair of computer speakers and an audio AV 444 Mackogo(amp makes a zooming sound as soon as you turn it on even when the volume control is zero) aplifier that were hit by the lightining, with the power on on the distribution board, but all these componets were on an off state.

    Which components do I start suspecting and replace right away especially when you do not yet currently have sufficient testing equipment for all of these?

    Have yourself a nice Day !

  9. admin

    April 7, 2011 at 6:13 am

    HI Johannes,

    Since it already hit by lightning, i suggest that you test all the components in it. The surge from the lightning could destroy any component.


  10. micropoy

    April 8, 2011 at 4:35 am

    Just want to share..if CFL are busted but ckt are still good, you can replaced it with new flourecent tube it will work..New CFLs are more expensive that the tube one..

  11. Sanjay

    June 29, 2011 at 2:37 pm

    Any books for repairing the CFL lamp

  12. admin

    June 29, 2011 at 7:04 pm


    Sorry no books on this subject.


  13. George Agsamosam

    January 4, 2012 at 10:26 pm

    i open some CFL lamps and i found some only open or diffected tube but all the electronics components are seems to be good, i replace it with one good tube then the lamp back to life again.

  14. admin

    January 5, 2012 at 7:30 am

    HI George,

    Thanks for the sharing!


  15. Amir Mukhtar

    January 5, 2012 at 1:02 pm

    Sir Jestine,
    Nice tip of fluorescent Lamp (Savor Light) repairing.
    Also, A tip of Mr. Sajjad who had installed lamp in car from battery..
    MR. Sajjad, You can use Emergency Light Circuit for your task achieve.
    which will be available from disposal centre easily.

    thanks you
    Amir Mukhtar


    April 30, 2012 at 5:32 am


    • Jestine Yong

      April 30, 2012 at 9:02 pm

      Hi Mohan,

      Get my ebook Testing Electronic Components it has all the details you want abt operating a digital multimeter.


  17. george sincero

    September 25, 2012 at 12:04 am

    Hi Jestine,
    Good Day sir,I am an electronic hobbyist and I often read and browse your site in fact i have purchased
    your e book online "Testing electronics components" i would like to inquire regarding the Blue ESR meter from anatek how can avail the meter as a kit.I would like to assemble it myself.I live and work here in Dubai,UAE i have already went to  ask a lot of electronic shops here in dubai about ESR meter and it seems the shops here never heard of this instrument because they reply back with a question "what is it".
    I would appreciate if you could give info on which distributor company dealing this kind of testing device here in UAE,have browse the net for it and found nothing. or I would be glad if you could facilitate sending me one.
    PS. please can you reply via my email..I badly need this device.

    • Jestine Yong

      September 25, 2012 at 3:48 am

      Hi George,

      I have sent a personal reply to your email.


  18. Chaitan Tirodkar

    October 24, 2012 at 10:06 am

    Hi Jestine,
    Good Day sir,I am an electronic Engineer and I often rbrowse your site.
    can you help me out with ESR  meter, meaning how to assemble it and what components are required?

    • Jestine Yong

      October 24, 2012 at 8:45 pm

      Hi Chaitan,

      You can visit the link below and email the owner for more info at:

      or you can buy a ready one or kitset unit at:

      The manual of the blue esr meter will show you how to assembled it.


  19. wael

    September 29, 2013 at 12:12 am

    well i have 2 lamps that went bad they were made in italy and have very beautiful bright white i decided not to toss them

    the symptom was the lamp producing light but the light was viberating from dim to bright it was great source of nuisance

    when i opened it i saw the main filter capacitor which was 10mf at 400volt is bad replacing it returned the lamp to it previous condition one thing to mention is that the flouscent lamp wires it self are not soldered to the board but rather attached to 2 leads of some must remove wires that are tiwsted around the leads and to access the board from buttom side and when the time comes to return them dont twist them around the leads remove the leads and solder the wires drectly to the board this will gurantee that they made good contact ...if you try to twist them you will not be able to make a perfect twist and this will cause intermittent connection and failure matter how hard you try to twist them you want make it like the factory ...just solder them and you ok ....i repaired the first lamp and twist them and fail withing one day.....the 2 2 other lamps are soldered and they survive 2 weeks so far and i expect them to live much longer ........these things are cheap but tossing them is harmful to the environment repair whenever possible that is it

    • Jestine Yong

      September 29, 2013 at 8:38 am

      HI Wael,

      Thanks a lot for sharing!


  20. Tom Graves

    March 31, 2019 at 8:27 am

    I read with interest your post from George Persico on repairing the ballast for a fluorescent desktop lamp (March 22, 2016). I have a lamp with similar conditions. Lamp does not attempt to start: verified continuity through the fuse and that R1 was functional, replaced the bulb - all without success. I'm measuring 336 VDC at the output of the power supply section marked V+. I assume this voltage should be much higher. Any suggestions would be appreciated.


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