Ive got quite a few transformers and switches lying in the parts bin so it occurred to me I might as well go and build a switched fan controller.
For the design I need some information from fellow growers based roughly on their minimum fan speeds in terms of %
Do we know what voltage the fan is running at when on the minimum speed? This will help my choose the right secondary voltage
Has anyone measured the power at this minimum speed to see what the effect is on current draw?
Theory says that if you half the speed, you will reduce the power 8 times
Cheers
G
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