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Ballast for T5 6 watt UVC bulb

Discussion in 'Electrics UK' started by ekon, 14 Oct 2020.

  1. ekon

    ekon

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    Small water treatment system for drinking water..uses one T5 6 w UVC bulb. 240v mains driven Ballast is 17 years old like the system and has gone kaput. I am struggling to find a replacement.

    Is the fact that it uses a UVC (Mercury) bulb crucial to good running, I see ballasts for "fluorescent" bulbs and "LED" bulbs..would these suffice if the right wattage?
     
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  3. chivers67

    chivers67

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    I convert Fluorescent fittings to use LED Tubes and label them up appropriately. Some don't need a driver just a Live & Neutral feed at one end.

    Edit - Sorry mis-read this, was concentrating as watching footie.
     
    Last edited: 14 Oct 2020
  4. JohnW2

    JohnW2

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    Are UVC LED tubes available? I suppose that they may well be, but I've never had any reason to look for them (only 'visible light' ones).

    Kind Regards, John
     
  5. winston1

    winston1

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  6. ericmark

    ericmark

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    No they are not, the 5 foot UV tubes where I worked used some thing like 200 watt, not the 58 watt of a visible light one, and as a result the ballast was also special.
     
  7. winston1

    winston1

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    I can't comment on one, but certainly the small T5 ones are the same.
     
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  9. SUNRAY

    SUNRAY

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    There are very different versions, the 4/5/6ft used for disco/stage use etc use standard control gear but the same size tubes used for chillers and filters are very different, fitting the wrong tube either way will result in almost instant failure. The only smaller versions I've handled are not standard control gear but I imagine others exist as per the larger sizes.
     
    Last edited: 15 Oct 2020
  10. ekon

    ekon

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    thanks all esp. Winston. I have emailed the Covershield firm you linked Winston..hope to get a reply tomorrow. There are a couple of old-style magnetic ballst that I think will be ok too ..though like the covershield one I'm not quite sure how the wiring goes. The one I have tha's now kaput has just to 2 leads on the output side that go direct on to the 2 pins on the T5 bulb which sits inside the silicon glass sleeve, which is itself sealed by o-rings in the metal housing that the water flows through. all the other potential replacements are a different style with the two mains input wires and what looks to be 4 potential push fit receptors on the output side?
     
  11. winston1

    winston1

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    Doesn't your T5 tube have 4 pins, 2 on each end?
     
  12. ekon

    ekon

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    sorry ..yes..late post + few beers. Covershiled got back to me and said part you linked to would be ok with UVC bulb. Thanks
     
  13. Tigercubrider

    Tigercubrider

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    Be careful testing the UVC - it can be pretty nasty
     
  14. SUNRAY

    SUNRAY

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    And don't look at a lit tube... Really don't.
     
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