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Thread: Question Concerning fan wattage

  1. #1
    Constant Bitrate
    Join Date
    Dec 2003
    South West, FL

    Question Concerning fan wattage

    Hey everyone ,

    I was wondering if anyone knew how many watts are needed to power a 120mm fan. I am thinking about getting a solar panal to power this.

    My general idea is to have a fun running during the daylight hours to keep the air going in and out of the case. I think this should at least help with cooling as long as the air keeps circulating throughout the day.

  2. #2
    Raw Wave Rob Withey's Avatar
    Join Date
    Apr 2000
    Bedfordshire, UK
    Depends on the fan. Assuming these are representative:

    as little as 3.6W and as much as 6.8W depending on airflow required. Possibly more.
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  3. #3
    Constant Bitrate
    Join Date
    Sep 2002
    Austin / Houston TX
    Look on the center of the fan. On one of the stickers it should give you the voltage and current it needs.

    We've discussed that idea some here:
    my ideas to combat heat

    Will you have air cominging in and out of the car too? Will your computer be on during the day?
    No Carputer YET.
    A car I'm designing...

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