Cap Cooler
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Cap Cooler
3D
Published 2019-08-27T16:42:59+00:00
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Description
I wanted a simpler cap cooler, uses a 5v 40mm fan powered by a USB battery bank.
I simply put the wire through the hat and down my shirt to a battery bank in my back pocket.
As this fan only uses about 200mA it can run for a very long time even on small battery banks
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Date published | 27/08/2019 |
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