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Connect 12V relay to LED

duke37

Jan 9, 2011
5,364
Joined
Jan 9, 2011
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5,364
If you have a mechanical switch, you do not need a relay.
 

Robert_fay

Jun 15, 2017
124
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Jun 15, 2017
Messages
124
If you have a mechanical switch, you do not need a relay.
True, But you need something to run control your relay. This switch could be replaced with a microcontroller, The relay could be run off a different circuit etc.
 
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