OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › OpenSprinkler Pi Exhaust Fan – Sealed Case Cooling › Re: Re: OpenSprinkler Pi Exhaust Fan – Sealed Case Cooling June 17, 2014 at 3:48 pm #27137 RayKeymaster The 5V fan you linked to seems to draw 400mA of current. If you use it, I would recommend using a separate 5V power supply, instead of drawing power directly from the OSPi board.
