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Power supply for mr16 led lights

  • patok Wednesday, February 20, 2013 5:51 AM Reply
    Hi all,

    I am wondering if I can use power supply sku:82748 to power one mr16 led light sku:102216 ?
    I am replacing 6 50w halogen lights for the above led lights and would need to use one power supply per light assy. as access is not the best.


  • desolder Top 10 Forum Poster Wednesday, February 20, 2013 11:16 AM Reply
    sku.102216 is designed to plug directly into a 12VAC power source. You shouldn't need a separate power supply. What voltage is your existing MR16 light system?
    What's up with the scrubbed LED driver IC markings?
    What are they trying to hide?

  • patok Friday, February 22, 2013 12:03 PM Reply
    Hi desolder

    Thanks for the reply. The mr16s that I am replacing are 12vac and each one has a transformer on it for 230vac input 11.5vac output. They have "halagon light transformer" written on them. Will they power the led mr16 bulbs ok? or will they have strobing effect? I thought the transformers for halogen lights are not suitable?
    Thanks again,

  • desolder Top 10 Forum Poster Monday, February 25, 2013 5:03 PM Reply
    I'm a bit confused. Are you saying that you have a single 230VAC to 11.5VAC transformer powering several 12VAC MR16 incandescent bulbs? If this is the case, then sku.102216 will work as a direct swap for your old 12VAC MR16 incandescent bulbs. You won't need any additional transformers or drivers.

    The "halogen light transformer" is just a simple step down transformer. It can power anything that will use 12VAC. It doesn't have to specifically be for halogen light bulbs.
    What's up with the scrubbed LED driver IC markings?
    What are they trying to hide?

  • patok Tuesday, February 26, 2013 5:02 AM Reply
    The 12vac halogen bullbs I want to replace do have a transformer on each one. I suppose my question really is if the led mr16 lamps (sku:102216) will accept the 11.5 volts AC from the original transformer? and also if they would perform better with a led power supply? (12 volts DC)

    Its not stated on the product page if they will accept AC... : (Rated Voltage: 11-18V)
    Although they do not mention DC either....

    Thanks again,

  • desolder Top 10 Forum Poster Tuesday, February 26, 2013 12:38 PM Reply
    It should take 12V (or 11.5V) AC. I would be very surprised if it did not. There were three reviewers of this bulb, and they all gave it good reviews. I assume they have standard 12VAC systems, and at least one of them would have complained of it didn't work with 12VAC.
    What's up with the scrubbed LED driver IC markings?
    What are they trying to hide?

  • sheepish Top 10 Forum Poster Tuesday, February 26, 2013 5:54 PM Reply
    One other thought, some of those halogen transformers only work properly if they have a big enough load (like a halogen bulb), so you might have to run several LED bulbs on each transformer.
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