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3 LED floodlights in place of one halogen

  • 07-01-2015 12:09pm
    #1
    Mark..
    Registered Users, Registered Users 2 Posts: 83 ✭✭


    At the moment there is one halogen 250w PIR floodlight in the garden. I want to replace this with 3 separate pir LED floodlights one 10w, 20w and a 30w in different areas of the garden. Since that adds to a total of 60watts, am I right saying this would be ok on the original circuit as it all adds up to less that half the wattage of the original old unit?? Thanks


Comments

  • #2
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Mark.. wrote: »
    At the moment there is one halogen 250w PIR floodlight in the garden. I want to replace this with 3 separate pir LED floodlights one 10w, 20w and a 30w in different areas of the garden. Since that adds to a total of 60watts, am I right saying this would be ok on the original circuit as it all adds up to less that half the wattage of the original old unit?? Thanks

    If the existing halogen light is wired on a circuit that has sufficient capacity then the circuit will have capacity for the 3 LED lamps because the combined load is less.


  • #3
    Tom44
    Registered Users, Registered Users 2 Posts: 951 ✭✭✭Tom44


    LED's are pricy. + I think you can't replace bulb, only the whole unit.
    ( I think? )

    Therefore I perfer halogen for short on / off's
    Long useage, then LED are better.??


  • #4
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Tom44 wrote: »
    LED's are pricy.

    Not anymore.
    In addition running costs are far lower for a given light output.


  • #5
    Mark..
    Registered Users, Registered Users 2 Posts: 83 ✭✭Mark..


    2011 wrote: »
    If the existing halogen light is wired on a circuit that has sufficient capacity then the circuit will have capacity for the 3 LED lamps because the combined load is less.

    Thats great thanks! ill go ahead and fit them then!


  • #6
    Mark..
    Registered Users, Registered Users 2 Posts: 83 ✭✭Mark..


    Tom44 wrote: »
    LED's are pricy. + I think you can't replace bulb, only the whole unit.
    ( I think? )

    Therefore I perfer halogen for short on / off's
    Long useage, then LED are better.??

    yes you have to change the whole unit if the LED goes, but there HR life expectancy is very long!


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  • #7
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Here you go


  • #8
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    2011 wrote: »
    Here you go

    Interesting. 50 watt ones at 80 odd euro. Serious led power there by the look of that.


  • #9
    deandean
    Registered Users, Registered Users 2 Posts: 2,258 ✭✭✭deandean


    I have converted almost every light in the house to LED at this stage.

    My experience of those LED floodlights is that they last about as long as the bulb in a standard Halogen light. But then the entire unit is buggered.

    I bought ten, 10W LED floodlights about 2 years ago and as of now, eight have failed.

    In all cases the driver (of very poor, & cheap construction) failed. The LED emitter and the housing was still OK.

    So I replaced the original drivers with good quality encapsulated drivers appropriate to the emitters, and they have been AOK since.

    TBH at this stage I just make my own LED lights. They are over-engineered but they are utterly reliable. I have made everything from 3W spots, to a 100W whopper that lights up the front of the house for Christmas!


  • #10
    Tow
    Registered Users, Registered Users 2 Posts: 9,223 ✭✭✭Tow


    deandean wrote: »
    My experience of those LED floodlights is that they last about as long as the bulb in a standard Halogen light. But then the entire unit is buggered.

    Many of the Ledvista models look like the standard Chinese models you can get direct from China (eBay/Aliexpress) for half the price. Big Clive has a series of videos on them: https://www.youtube.com/user/bigclivedotcom/videos
    Usual story of under rated/cheap drivers and earth leads just glued on, but as you said nice case if you want to build your own.

    When is the money (including lost growth) Michael Noonan took in the Pension Levy going to be paid back?



  • #11
    Mark..
    Registered Users, Registered Users 2 Posts: 83 ✭✭Mark..


    deandean wrote: »
    I have converted almost every light in the house to LED at this stage.

    My experience of those LED floodlights is that they last about as long as the bulb in a standard Halogen light. But then the entire unit is buggered.

    I bought ten, 10W LED floodlights about 2 years ago and as of now, eight have failed.

    In all cases the driver (of very poor, & cheap construction) failed. The LED emitter and the housing was still OK.

    So I replaced the original drivers with good quality encapsulated drivers appropriate to the emitters, and they have been AOK since.

    TBH at this stage I just make my own LED lights. They are over-engineered but they are utterly reliable. I have made everything from 3W spots, to a 100W whopper that lights up the front of the house for Christmas!


    So was the problem damp getting into the drivers? Or did they just burn out from use?? It's a good thing replacement drivers are cheap enough. If your handy with a soldering iron it would probably ony be the led chip or that driver that goes!?!


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