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Halogen Linear Bulbs

  • 29-04-2009 9:28pm
    #1
    JOHNPT
    Closed Accounts Posts: 517 ✭✭✭


    Can u use dimmer switch on those 150 watt halogen linear bulbs. What happens if u do use a dimmer.

    Thanks in advance


Comments

  • #2
    davelerave
    Closed Accounts Posts: 1,712 ✭✭✭davelerave


    i think its ok. never tried it


  • #3
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    Yes it can be dimmed.
    I am guessing that you mean a "J type" like the one in the link below.


    http://xclusivesupplies.com/images/J78%2080MM

    Lamps like this draw a very large currnet on initial switch on. This cause arcing that can damage a switch after prolonged use. Therfore it is best to "derate" the dimmer switch you are using. This means that if lighting load you are trying to dim is say 300W use a dimmer switch rated at 500VA rather than 300VA.


  • #4
    davelerave
    Closed Accounts Posts: 1,712 ✭✭✭davelerave


    yes just buy quality dimmer and de-rate by at least 20%


  • #5
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    yes just buy quality dimmer
    Eactly.
    Many chaep dimmers are a waste of money. They often fail or buzz after a very short time.

    MK are great but very pricey.


  • #6
    JOHNPT
    Closed Accounts Posts: 517 ✭✭✭JOHNPT


    Thanks. The light was actually used on a dimmer but it dosent dim now. The dimmer still turns it on and off but dosent dim it. Not sure but dimmer prob broken but still seems to turn light on and off. Strange.

    Thanks for advice


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


    The light was actually used on a dimmer but it dosent dim now. The dimmer still turns it on and off but dosent dim it. Not sure but dimmer prob broken but still seems to turn light on and off. Strange.
    The dimmer has just died that is all. Replace it with a good one!


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