1. New to Christmas lighting? Get started with the AusChristmasLighting 101 Manual:
    auschristmaslighting.com/wiki/AusChristmasLighting-101

Best place to inject power?

Discussion in 'Computers, Cabling & Other Miscellaneous Hardware' started by jimcllc, Dec 7, 2014.

  1. jimcllc

    jimcllc Apprentice Elf

    Joined:
    Dec 13, 2012
    Messages:
    62
    Likes Received:
    0
    Location:
    Central Illinois
    Find Me On:
    Was reading a DIY wiki and it says "Using Power Injection at the end of a String nominally reduces the current thru the wire to the beginning of the string in half, since the Power Injection Wires carry roughly half of the current for the string." I am unsure if this is good or bad?
     
  2. AAH

    AAH I love blinky lights :) Community Project Designer

    Joined:
    Dec 27, 2010
    Messages:
    2,614
    Likes Received:
    35
    Location:
    Eaglehawk
    Find Me On:
    It's not strictly half as it depends on the wire sizes in use and the thicker wire will have a lower resistance and will thus carry more of the current. By carrying half the current you reduce the voltage drop to half which is the aim of power injecting. Ideally you always want to minimise the voltage drop to less than when "pinking" of the pixel occurs or latching up or flay performance occurs.
     
  3. OP
    OP
    jimcllc

    jimcllc Apprentice Elf

    Joined:
    Dec 13, 2012
    Messages:
    62
    Likes Received:
    0
    Location:
    Central Illinois
    Find Me On:
    So instead of injecting power at the end, better to inject where the pinking begins?
     

Share This Page