Running 12v fan at 4.5v continuously

Discussion in 'General Electronics Chat' started by Mrakowski, Mar 14, 2016.

  1. Mrakowski

    Thread Starter New Member

    Mar 14, 2016
    I've recently finished a project that requires continuous air flow (24/7), and I'm using a 12v fan for this, does anyone know if it is safe to leave a DC fan on continuously and if running it at a lower voltage affects the lifetime of the fan? (It spins up fine and it's not likely to get obstructed)
  2. wayneh


    Sep 9, 2010
    It will run but not move nearly as much air as it is rated for. I don't think its life will be shortened (I suspect it may last longer) but it would be nice to hear from a fan expert.
    Last edited: Mar 15, 2016
    GopherT likes this.