Page 1 of 2 12 LastLast
Results 1 to 10 of 15

Thread: 220 V LED downlighters glowing when switched off

  1. #1
    Full Member
    Join Date
    Aug 2013
    Location
    Port Elizabeth
    Posts
    43
    Thanks
    2
    Thanked 3 Times in 3 Posts

    220 V LED downlighters glowing when switched off

    I have jus installed 6 down-lighters in my lounge/dining area which are switched 2 x dining and 4 x lounge.
    When Is switch off the 2 in the dining area are out completely but 3 of the 4 in the lounge area glow. What can I do to eliminate the after glow?

  2. #2
    Diamond Member Justloadit's Avatar
    Join Date
    Nov 2010
    Location
    Johannesburg
    Posts
    2,746
    Thanks
    93
    Thanked 562 Times in 477 Posts
    Blog Entries
    1
    Do you have a dimmer in this circuit?
    Victor - Knowledge is a blessing or a curse, your current circumstances make you decide!
    Solar and LED lighting solutions - www.microsolve.co.za

  3. #3
    Full Member
    Join Date
    Aug 2013
    Location
    Port Elizabeth
    Posts
    43
    Thanks
    2
    Thanked 3 Times in 3 Posts
    No, just straight 220V led.

  4. #4
    Diamond Member AndyD's Avatar
    Join Date
    Jan 2010
    Location
    Cape Town
    Posts
    4,671
    Thanks
    542
    Thanked 887 Times in 717 Posts
    Change the switch for a 2-pole and switch both the live and neutral (assuming the neutral is running though the switch)

    There's also the option to install a snubber (bleed resistor) either at the switch or at one of the lights.

    You can also use a 2-pole 230v relay at the first light fitting. The light switch is wired to operate the relay and the 2 poles of the relay then switch the live and the neutral to the lights. This is a belt and braces solution because firstly you're switching both live and neutral and secondly the coil of the relay also acts as a drain resistor.

    There are also other ways of wiring a light circuit switch which....whilst they're maybe not illegal, certainly aren't orthodox and best only used as a last resort so I won't get into them here.

    **Edit**

    Just a word of warning, if you're not an electrician you should get one in to do this work. All the solutions above assume the circuit is correctly wired, safe and free of faults. Before assuming the glowing LED's are caused by small induced voltages which would be addressed by the methods above you need to test the circuit, specifically the IR values to prove the problem isn't actually a symptom of a more serious underlying fault.
    Last edited by AndyD; 03-Mar-17 at 11:39 PM. Reason: Warning added
    _______________________________________________
    I am special and so is Vanash.
    _______________________________________________

  5. #5
    Full Member
    Join Date
    Aug 2013
    Location
    Port Elizabeth
    Posts
    43
    Thanks
    2
    Thanked 3 Times in 3 Posts
    Thank AndyD. I will most certainly get an electrician to sort it.

  6. #6
    Full Member
    Join Date
    Aug 2013
    Location
    Port Elizabeth
    Posts
    43
    Thanks
    2
    Thanked 3 Times in 3 Posts
    Sorry for the late reply. The electrician has put in a snubber and the problem has been resolved.

  7. Thanks given for this post:

    AndyD (26-Jul-17)

  8. #7
    Bronze Member
    Join Date
    Jun 2017
    Location
    Port Elizabeth
    Posts
    162
    Thanks
    5
    Thanked 46 Times in 35 Posts
    Hi
    We have come across similar problems and it has been caused by a switch which has LED indicator - We have found the indicator to have been connected incorrectly allowing a slight "leakage "

  9. #8
    Junior Member
    Join Date
    Feb 2015
    Location
    Cape Town
    Posts
    15
    Thanks
    4
    Thanked 0 Times in 0 Posts
    you can also install a small capacitor at one of the lamps

  10. #9
    Platinum Member
    Join Date
    Apr 2010
    Location
    KZN
    Posts
    1,706
    Thanks
    79
    Thanked 148 Times in 128 Posts
    We have also been encountering a similar problem...LED downlight flickers when switched off...on 3 occasions we found it to be the same make (Ellies) ...replaced the lamp with a different brand...problem solved.

  11. #10
    Full Member
    Join Date
    Jul 2015
    Location
    Cape town
    Posts
    45
    Thanks
    18
    Thanked 5 Times in 5 Posts
    I had a similar issue today with major tech LED indicators, there are wired to be on when the light is off, as a result there was a constant 35v on the load side of the switch even when off. A bleed resistor did the job.
    I think these switches would be so much better if they had 2 poles so that the led indicator could be separate from the load. double pole relay could sort it out too, using NC for led indicator and NO for Light load

Page 1 of 2 12 LastLast

Similar Threads

  1. switched socket outlets or not!
    By joshthejew in forum Electrical Contracting Industry Forum
    Replies: 3
    Last Post: 18-Aug-16, 11:16 PM
  2. [Question] 12V Downlighters
    By cknipe in forum Electrical Contracting Industry Forum
    Replies: 33
    Last Post: 20-Apr-15, 12:29 PM
  3. [Question] Downlighters
    By CollenD in forum Electrical Contracting Industry Forum
    Replies: 7
    Last Post: 03-Feb-13, 09:28 AM
  4. downlighters
    By murdock in forum Electrical Contracting Industry Forum
    Replies: 3
    Last Post: 25-Mar-10, 08:00 AM

Did you like this article? Share it with your favourite social network.

Did you like this article? Share it with your favourite social network.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •