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Changing downlight globes

I have 50w dimmable down-lights in my new house and I need to replace the globes in two. They are of the type that the whole unit pulls out of the hole cut into the plaster ceiling and not where the inner globe housing screws out. The first one came out fine but the second is cracking the plaster. The more I try to get it out the more damage it's doing. Is there a tool I can get to remove the fitting safely.

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If its the gu10 bulbs that you twist round to release them well theres a small ****** that sticks on the bulb and removes it leaving the actual light fitting in the ceiling.

Posted on Sep 27, 2009

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What's your problem?I WANT TO INSTALL A DOWNLIGHT BUT THERE ARE 8 WIRES COMING FROM THE CEILING WHAT GOES WHERE?


Connect to live and neutral, cap other wires and see what happens.
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The LED light bulbs operate at 3 to 5 V usually. The noise your hearing is a result of the voltage reduction within the internal workings of the lamp base. The lamps should be installed with an
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This is usually on most packaging:

LED MR16 lamps operate in the same fittings as regular 12V lamps. However, they work best when they are mated with an led driver in place of the transformer.
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it was a mistake to install them in first place, now, if your transformer blows, that meant that it is overloaded!

primary solutionto the problem, without adding cost of re-wiring will be change globes (50w) to these of lower wattage, say 40w or even less and this will protect transformers from blowing up.

another solution will be to what is load on the transformer, it must be at least 20% greater than combined light supported. if it is not, then duiring power fluctuation it can, and will be burn out.

say, you have 30 lights and 3 switches, this meant that you have three circuits of say 10 lights. 10lights x 50w = 500wat!!! that is rather large and costly transformer, to avoid this prohibitive cost, solve problem otherways, buy 120watt or 150watt transformer and wire two globes to each. this will provide margin as well as enough supply to support your light.

please bear in mind that you are legally not allowed to touch anything what is connected to mains except changing the globe! you need to speak with elelctrician and come to solution in cooperation with eleloctrician.

if you find this advice useful, please do not hesitate to leave comment and vote for me, thanx!

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