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Discuss Pulsing LED downlights in the Electrical Forum area at ElectriciansForums.net

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hi, I am installing two LED down lights under kitchen cabinets. It is a kit supplied by Howdens including a 12v LED power supply. I have run a spur from an adjacent light switch and have put an in line switch in.

When turned on the lights are pulsing every second. I have check the wiring and removed the in line switch but the same issue remains..

Any ideas?

Thanks
 
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telectrix

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Mentor
Arms
Esteemed
power supply/driver - LED mismatch take them back and buy from an electrical specialist, not a kitchen supplier.
 

Wilko

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Arms
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As per Tel post, I reckon the driver doesn't work down to just a few watts. Post up a pic of your power supply if you like :)
 

Midwest

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Arms
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power supply/driver - LED mismatch take them back and buy from an electrical specialist, not a kitchen supplier.
Actually the LED kits from Howdens are very, very expensive; think they source them from an electrical specialist, then make their mark up.

@Bjorn, firstly have you ensured all the connections are firmly pushed in? How have you 'spur from an adjacent light switch and have put an in line switch in'?
 

littlespark

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Advent Win
It depends if the light switch spurred from has a neutral. (apologies @Bjorn if this isn't the case)

Test the power supply by fitting a plug with a 3A fuse in it and plugging it into a socket.

Howdens do have reasonably good kit, but more expensive for nothing more than what you can get from somewhere like screwfix
 

dinger809

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Arms
Either you have no neutral, as you’ve run it from the light switch giving only line and switch line, or is the switch a dimmer? It may not be LED compatible. I think the first is more likely
 

Midwest

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  • Thread Starter Thread Starter
  • #9
Sorry, I actually put a junction box in the mains lighting ring and ran a spur that way so I do have a neutral.

Only thing to do is to check the connections in the junction box which is behind the wall unit.

All other connections checked and double checked
 
  • Thread Starter Thread Starter
  • #11
Either you have no neutral, as you’ve run it from the light switch giving only line and switch line, or is the switch a dimmer? It may not be LED compatible. I think the first is more likely
It’s a normal switch, I also tried without the switch so it just be something to do with the current
 
  • Thread Starter Thread Starter
  • #13
Have bypassed the junction box by using alternative connectors and the problem remains.

It must be something to do with the current coming from the lighting ring (now embedded in the wall!)
 

mattg4321

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Arms
Esteemed
You've proved the equipment is not at fault.

You're now out of your depth and will need an electrician to safely connect this up for you.

Doesn't sound good what your saying about a joint buried in the wall!
 

DPG

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Arms
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Advent Win
Did you get this sorted? Are you sure you have picked up a proper neutral?
 
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