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12v Spotlights flicker

I have 3 x 20w halogen spotlights powered through a 12v transformer. I have changed the bulbs to 5w LED. When they have been switched on for a while they flicker. What is the problem

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  • Kitchen Ranges Master
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Conversion from halogen to LED lighting is not a simple plug-and-play process. The power supply is delivering more than 12v because the LEDs draw less current. The flicker could be evidence that the LEDs are gradually breaking down.

Posted on Dec 09, 2016

  • Russel Dove
    Russel Dove Dec 09, 2016

    Thanks Tom for your suggestion. I have only just fitted the new LED A/C D/C bulbs. Do you think my three spotlights require a different 12v transformer

  • Russel Dove
    Russel Dove Dec 15, 2016

    The 3 5w LED bulbs were A/c D/c and the existing transformer was not delivering enough power. Changed the transformer for the 12v 18w (3x5w bulbs) LED transformer from Maplins and the problem is now solved.

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If this is the usual sort of halogen spotlight, it is usually supplied with a mains charger adaptor and a lead to charge it from the car cigar lighter socket.

Both those items are also commonly supplied with a range of car-related rechargeable items, torches, jumpstarters and so forth.
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Puzzled over this for a bit and finally pulled the dishwasher out from the cabinet. It's easy to replace the bulb from the outside. Socket is part of the wire guide which pops out with a screwdriver (see photo).
I can see threads on the inside dome but for the life of me I still can't get the dome to turn. Perhaps a special tool fitting the nubs would give one some leverage.
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change-light-bulb-in-asko-d3531-u1isofcug0s5njcglk3erjt1-3-0.jpeg

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Hello yes you can the Important thing to remember here is not to exceed the wattage that the transformer puts out.

Add up the wattage of each bulb that you are running and ensure that you do not exceed 300 watts.

for example a 300 watt transformer could drive
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Its also ok to mix bulb wattage for example I use 10 watt bulbs in the fixtures in the front of the house but also power 4 20watt spotlights from the same transformer.

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