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More lighting help needed

Discussion in 'LEDs and Optoelectronics' started by Manilaboy, Sep 9, 2012.

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  1. Manilaboy


    Sep 8, 2012
    I have a Track Light head that will make an excellent adjustable reading lamp.
    The rating printed on the head reads: 120V 60Hz 20 Amp. My question before I buy a
    MR16 50 Watt lamp is:

    Is there any way to test the ballast with a multi-meter?

    Also, is there any way to use a dimmer switch/potentiometer/variable resistor with this ballasted lamp?

    Thanks, Manilaboy
  2. john monks

    john monks

    Mar 9, 2012
    The MR16 50w light is a 12 volt bulb.
    By the ballast I assume you mean the transformer.
    If this is the case you just need to plug it in and check the output, where the bulb plugs in as verify that you have 12 volts.

    120V at 20 amps is 2400 watts. Something is wrong.
  3. CocaCola


    Apr 7, 2012
    Or 120V bulb...

    The MR16 designation is more a description vs a specific designation...

    MR = multifaceted reflector
    16 = the diameter

    The sockets have different spacing depending on the rated voltage...
    Last edited: Sep 9, 2012
  4. CocaCola


    Apr 7, 2012
    Back to the OP question this is a mains rated bulb, there should be no 'transformer' or 'ballast' in the lamp for this bulb, it runs directly off the mains... Thus any over the counter light dimmer will work...

    Now if it's running 12V bulbs that is a different story, but most of them can be dimmed as well with just a regular dimmer...
  5. Manilaboy


    Sep 8, 2012
    Thanks John & Coca Cola :)

    The sticker that is on the back of the light head should be on the inside of the track.
    After researching on internet, I found images from E bay + a phone number to Cal Lighting whom I will call regarding this after they open and after I test w/ multi meter.
    Thanks again guys!
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