Who is using what for a headlight relay kit?? (brighter headlights) H4

Discussion in 'Electrical Systems' started by QUAKE_WARS, Aug 8, 2019.

  1. COPO

    COPO Veteran Member Lifetime Gold Member

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    The fuse will pop before it gets too hot.
     
  2. junkyardZ28find

    junkyardZ28find Veteran Member

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    Not always the case-a slow, parasitic voltage loss and amperage gain can increase the amount of heat until it melts. Once the thermal runaway process starts, that fuse may not pop because the current isnt reaching (ie being used) the headlights because of the switch. To a lesser extent that is also the reason why fusible links protect better than just a fuse on individual circuit runs.
     
  3. Jeep43

    Jeep43 Veteran Member

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    My setup had separate relays with hot and ground splitting in parallel to the relays.
     
  4. COPO

    COPO Veteran Member Lifetime Gold Member

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    Last edited: Sep 16, 2019
    Rene Melten likes this.

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