I have some under-unit spotlights fitted in my kitchen. These are low voltage and are driven by the supplied transformer. This is attached to a wall dimmer unit. The problem is that a humming noise comes from the lights/transformer when switched on. What can I do to eliminate this? Is it a potential danger if I decide to live with it?
Hi the 'humming' noise is from the transformer & is 50Hz. mains in coil & is unavoidable, to reduce if fitted to cabinets is to move unit to solid surface if poss. as cabinets act as sound amplifiers like a load speaker cabinet would.
Hi, if they are capsule lamps as used in under cabinet lights with 2 prong connections they must not be touched with bare fingers as the 'glass' is quartz crystal which absorbes slightest trace of oil from hands, this causes hotspots, blackening & a short life.
If recessed type ceiling fitting check rating of lamps against fittings design rating which should be on the holder
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