G4 LED bulbs buzzing and flickering

Discussion in 'Electricians' Talk' started by greenback78, Feb 15, 2020 at 9:05 AM.

  1. greenback78

    greenback78 Active Member

    As 3 out of 5 halogen g4 bulbs in a fitting had gone I decided to replace all 5 with new LEDs. Went with Philips as they tend to be more reliable than the no-name Chinese brands. Unfortunately the bulbs are making a buzzing noise which gets progressively worse before starting to flicker badly. Any ideas what could be causing this? Seems off and assume it’s related to the fitting (less than 10 years old). Thanks.
     
  2. Philip Hyde

    Philip Hyde Active Member

    Do you have a dimmer on the circuit?? If so it's probably that. Needs to be trailing edge dimmer for LEDs
     
  3. greenback78

    greenback78 Active Member

    No. No dimmers anywhere and other LEDs in the house are working fine.
     
  4. dobbie

    dobbie Well-Known Member

    Are they 12volt or 240 volt.
    If 12 volt they may not be compatible with the transformer, or not enough load for the transformer and need a compatible driver fitted for the load.
     
  5. Philip Hyde

    Philip Hyde Active Member

    Yeah good point I read G4 as Gu4 o_O
     
  6. greenback78

    greenback78 Active Member

    12v as far as I can see from the description. Will check the fitting and see if I can replace the transformer. Thanks for the advice.
     

Share This Page