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Numerous Lights from one switch

Former Community Member
Former Community Member
Hi All I was wondering if using the attached diagram would this be a good design for switching on numerous number of lights in one switch. I assume it is in some form of daisy chain. Its the one that I have rung?.Jimmy

Required Lighting Circuit for one switch operation to light 12 lights at once.pdf
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  • 0
    Farmboy:
    Simon Barker:
    Farmboy:




    Also, being careful which fittings are used. I was looking at some downlights in cef a few months ago, to replace some 50W halogens, and the MI's stated that only 7 fittings could be on the cct - the whole cct, not just one switch (don't recall the make/model though).


    F


    Some LED fittings take huge inrush currents when turned on.  I suppose it would add a few pennies to the cost to add a surge limiter.






    But why would you want to go against MI's? Isn't that asking for trouble in the event of issues?


    F




    As mapj suggests, I was having a go at the manufacturers for saving a few pence on their designs, and pushing the problems onto the installer.


    LED fittings usually have a switch mode power supply.  At the front end of the power supply is a rectifier and a chunky capacitor.  In the first half cycle from when the thing is switched on, that capacitor has to go from discharged to fully charged - so a huge current.  After that, the whole fitting will only draw a few hundred milliamps.


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  • 0
    Farmboy:
    Simon Barker:
    Farmboy:




    Also, being careful which fittings are used. I was looking at some downlights in cef a few months ago, to replace some 50W halogens, and the MI's stated that only 7 fittings could be on the cct - the whole cct, not just one switch (don't recall the make/model though).


    F


    Some LED fittings take huge inrush currents when turned on.  I suppose it would add a few pennies to the cost to add a surge limiter.






    But why would you want to go against MI's? Isn't that asking for trouble in the event of issues?


    F




    As mapj suggests, I was having a go at the manufacturers for saving a few pence on their designs, and pushing the problems onto the installer.


    LED fittings usually have a switch mode power supply.  At the front end of the power supply is a rectifier and a chunky capacitor.  In the first half cycle from when the thing is switched on, that capacitor has to go from discharged to fully charged - so a huge current.  After that, the whole fitting will only draw a few hundred milliamps.


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