That LED Christmas light flicker

Discussion in 'Off Topic' started by reitz, Dec 10, 2010.

  1. rockyct

    rockyct Diamond Member

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    No, I haven't but you sure are tempting me now. ;) Actually, it should take far less than 120 volts to see if it works. Maybe only around 40 volts or so. The threshold voltage of the LEDs is pretty low. Hmm...I'm going to go see how many 9V batteries I can scrounge together.
     
  2. Rubycon

    Rubycon Madame President

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    Yes you are correct - I'm so used to "firing voltage" of NE2 lamps of 85+ volts. The LEDs will glow - albeit dimly - but you should see interleaving if that's the case.
     
  3. Leros

    Leros Lifer

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    I built a full wave rectifier for my set of lights. They were all turned on with that. However these were short 40 bulb strands I bought at the grocery store, not long enough to justify putting bulbs both directions.
     
  4. bobdole369

    bobdole369 Diamond Member

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    Vforwards gotta be at least 0.6v on LED's right? So 100 lights * 0.6v = 60v just in bias voltage. Theres gotta be a ballast somewhere.
     
  5. Rubycon

    Rubycon Madame President

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    Cockroft-Walton multiplication?

    I know white LEDs can need more than 2V. :eek: