LED Lighting Issue

[musszzy]

Hi,

I have an odd problem with Led lighting and would appreciate if anyone had a theory on what i am doing wrong (nearly said can someone shed any light on this!).

I have 6 off 12v MR16 7W LED lights wired in a pelmet with a maximum cable run of approximately 6 feet using 1.0mm T+E. The transformer is a 1-10v dimmable led driver rated
at 12v 5 amps i.e 60W.

When i switch the transformer on only 3 bulbs light.

If i remove a single light bulb (any one) all 5 light and it works fine.

When initially powered up the current draw with all lights is 5.14 amps (too much)
If i remove one lamp 5 light up at the expected 3.14 amps and if i then reconnect the 6th lamp
they all work and the current increases to the expected 3.8 amps. However as soon as i switch
the transformer of either by shorting the 1-10v input or at the mains then the problem returns and its again drawing over 5 amps.
Any info appreciated.
Thanks.

 

[Lucid]

You might get a quicker response posting the UK Electrics forum here //www.diynot.com/diy/forums/electrics/

This is the Audio Visual forum, that means we focus more here on tellies, Sky boxes, home cinema and that sort of thing.


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[musszzy]

May be right as i was in two minds about where to post but electrics seemed to deal
more with mains voltage items/issues however will give it a try if no luck.

 

[winston1]

The switch on surge is causing the LED driver (it is not a transformer) to shut down.