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  1. N

    transformer hum

    The light is a ceiling mounted 8 bulb halogen fitting and the switch is the normal light switch on the wall.I have wired the light fitting with the fitted cables.Earth to earth.Neutral to the two neutrals and the live to the cable returning from the switch .The other three cables looped together...
  2. N

    transformer hum

    There is no dimmer switch controlling the light.I have disconnected the light at the moment and will need to check if there is a voltage when off at the wall.When the light is switched on it still hums but a lot quieter
  3. N

    transformer hum

    I have installed new low voltage lights in lounge.12v halogen bulbs.The problem is that when the light is switched off at the wall the fitting emits a loud hum from the built in transformer.When you switch it on the hum is reduced considerably.The power is supplied at the ceiling by the 3 wire...
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