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Thread: Question Concerning fan wattage

  1. #1
    Constant Bitrate
    Join Date
    Dec 2003
    Location
    South West, FL
    Posts
    201

    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
    Location
    Bedfordshire, UK
    Posts
    2,139
    Depends on the fan. Assuming these are representative:

    http://uk.farnell.com/jsp/catalog/vi...?prodId=926206

    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
    Location
    Austin / Houston TX
    Posts
    122
    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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